656061061161 has 24 divisors (see below), whose sum is σ = 962014301920. Its totient is φ = 397400065920.

The previous prime is 656061061157. The next prime is 656061061163. The reversal of 656061061161 is 161160160656.

It is not a de Polignac number, because 656061061161 - 2² = 656061061157 is a prime.

It is a super-2 number, since 2×656061061161² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (656061061163) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 197430 + ... + 1162368.

Almost surely, 2^656061061161 is an apocalyptic number.

It is an amenable number.

656061061161 is a deficient number, since it is larger than the sum of its proper divisors (305953240759).

656061061161 is a wasteful number, since it uses less digits than its factorization.

656061061161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 966837 (or 966826 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 39.

The spelling of 656061061161 in words is "six hundred fifty-six billion, sixty-one million, sixty-one thousand, one hundred sixty-one".