Search a number
-
+
12068613660161 = 20707582827723
BaseRepresentation
bin1010111110011111000101…
…1011100001111000000001
31120201202012102210011221002
42233213301123201320001
53040213010044111121
641400124454541345
72353633332342032
oct257476133417001
946652172704832
1012068613660161
1139332a7868273
12142ab8a367855
136970b085c2b6
142da1a443aa89
1515ddeb988e0b
hexaf9f16e1e01

12068613660161 has 4 divisors (see below), whose sum is σ = 12069196508592. Its totient is φ = 12068030811732.

The previous prime is 12068613660137. The next prime is 12068613660163. The reversal of 12068613660161 is 16106631686021.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-12068613660161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12068613660163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 291393155 + ... + 291434568.

It is an arithmetic number, because the mean of its divisors is an integer number (3017299127148).

Almost surely, 212068613660161 is an apocalyptic number.

It is an amenable number.

12068613660161 is a deficient number, since it is larger than the sum of its proper divisors (582848431).

12068613660161 is an equidigital number, since it uses as much as digits as its factorization.

12068613660161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 582848430.

The product of its (nonzero) digits is 373248, while the sum is 47.

The spelling of 12068613660161 in words is "twelve trillion, sixty-eight billion, six hundred thirteen million, six hundred sixty thousand, one hundred sixty-one".

Divisors: 1 20707 582827723 12068613660161