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1066645163 = 4012659963
BaseRepresentation
bin111111100100111…
…011011010101011
32202100002012002102
4333210323122223
54141030121123
6253501524015
735301222443
oct7744733253
92670065072
101066645163
114a8103331
1225927360b
1313cca29ac
14a1939123
1563998028
hex3f93b6ab

1066645163 has 4 divisors (see below), whose sum is σ = 1069305528. Its totient is φ = 1063984800.

The previous prime is 1066645157. The next prime is 1066645169. The reversal of 1066645163 is 3615466601.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (1066645157) and next prime (1066645169).

It is a cyclic number.

It is not a de Polignac number, because 1066645163 - 28 = 1066644907 is a prime.

It is a super-2 number, since 2×10666451632 = 2275463807502593138, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1066645169) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1329581 + ... + 1330382.

It is an arithmetic number, because the mean of its divisors is an integer number (267326382).

Almost surely, 21066645163 is an apocalyptic number.

1066645163 is a deficient number, since it is larger than the sum of its proper divisors (2660365).

1066645163 is an equidigital number, since it uses as much as digits as its factorization.

1066645163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2660364.

The product of its (nonzero) digits is 77760, while the sum is 38.

The square root of 1066645163 is about 32659.5340291315. The cubic root of 1066645163 is about 1021.7390437858.

The spelling of 1066645163 in words is "one billion, sixty-six million, six hundred forty-five thousand, one hundred sixty-three".

Divisors: 1 401 2659963 1066645163