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160863587606401 = 2389253092
BaseRepresentation
bin100100100100110111111000…
…111111110001111110000001
3210002120102001000010212202221
4210210313320333301332001
5132041042111411401101
61330043413440411041
745612003442623421
oct4444677077617601
9702512030125687
10160863587606401
114728a9565538a9
1216060536016a81
136b9b4a975bbb4
142ba1ba6a08481
15138e66ed2baa1
hex924df8ff1f81

160863587606401 has 9 divisors (see below), whose sum is σ = 160961269471401. Its totient is φ = 160765965008304.

The previous prime is 160863587606389. The next prime is 160863587606431. The reversal of 160863587606401 is 104606785368061.

The square root of 160863587606401 is 12683201.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 116166340246401 + 44697247360000 = 10778049^2 + 6685600^2 .

It is not a de Polignac number, because 160863587606401 - 235 = 160829227868033 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 160863587606401.

It is not an unprimeable number, because it can be changed into a prime (160863587606431) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 30300164535 + ... + 30300169843.

Almost surely, 2160863587606401 is an apocalyptic number.

160863587606401 is the 12683201-st square number.

160863587606401 is the 6341601-st centered octagonal number.

It is an amenable number.

160863587606401 is a deficient number, since it is larger than the sum of its proper divisors (97681865000).

160863587606401 is an frugal number, since it uses more digits than its factorization.

160863587606401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15396 (or 7698 counting only the distinct ones).

The product of its (nonzero) digits is 34836480, while the sum is 61.

The spelling of 160863587606401 in words is "one hundred sixty trillion, eight hundred sixty-three billion, five hundred eighty-seven million, six hundred six thousand, four hundred one".

Divisors: 1 2389 5309 5707321 12683201 28185481 30300167189 67335114109 160863587606401