656612160612 has 12 divisors (see below), whose sum is σ = 1532095041456. Its totient is φ = 218870720200.

The previous prime is 656612160599. The next prime is 656612160613. The reversal of 656612160612 is 216061216656.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×656612160612² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (656612160613) 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, 27358840014 + ... + 27358840037.

It is an arithmetic number, because the mean of its divisors is an integer number (127674586788).

Almost surely, 2^656612160612 is an apocalyptic number.

It is an amenable number.

656612160612 is an abundant number, since it is smaller than the sum of its proper divisors (875482880844).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

656612160612 is a wasteful number, since it uses less digits than its factorization.

656612160612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54717680058 (or 54717680056 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 42.

The spelling of 656612160612 in words is "six hundred fifty-six billion, six hundred twelve million, one hundred sixty thousand, six hundred twelve".