12060612161 has 6 divisors (see below), whose sum is σ = 13059716310. Its totient is φ = 11132872608.

The previous prime is 12060612139. The next prime is 12060612173. The reversal of 12060612161 is 16121606021.

It can be written as a sum of positive squares in 3 ways, for example, as 1416769600 + 10643842561 = 37640^2 + 103169^2 .

It is not a de Polignac number, because 12060612161 - 2²⁶ = 11993503297 is a prime.

It is a super-2 number, since 2×12060612161² (a number of 21 digits) contains 22 as substring.

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 12060612161.

It is not an unprimeable number, because it can be changed into a prime (12060612131) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 35682116 + ... + 35682453.

It is an arithmetic number, because the mean of its divisors is an integer number (2176619385).

Almost surely, 2^12060612161 is an apocalyptic number.

It is an amenable number.

12060612161 is a deficient number, since it is larger than the sum of its proper divisors (999104149).

12060612161 is an equidigital number, since it uses as much as digits as its factorization.

12060612161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71364595 (or 71364582 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 26.

The spelling of 12060612161 in words is "twelve billion, sixty million, six hundred twelve thousand, one hundred sixty-one".