656600551161 has 32 divisors (see below), whose sum is σ = 934011025920. Its totient is φ = 408855115776.

The previous prime is 656600551147. The next prime is 656600551169. The reversal of 656600551161 is 161155006656.

656600551161 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 656600551161 - 2⁵ = 656600551129 is a prime.

It is a super-2 number, since 2×656600551161² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (656600551169) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 27076480 + ... + 27100718.

It is an arithmetic number, because the mean of its divisors is an integer number (29187844560).

Almost surely, 2^656600551161 is an apocalyptic number.

It is an amenable number.

656600551161 is a deficient number, since it is larger than the sum of its proper divisors (277410474759).

656600551161 is a wasteful number, since it uses less digits than its factorization.

656600551161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28273.

The product of its (nonzero) digits is 162000, while the sum is 42.

It can be divided in two parts, 6566005 and 51161, that added together give a palindrome (6617166).

The spelling of 656600551161 in words is "six hundred fifty-six billion, six hundred million, five hundred fifty-one thousand, one hundred sixty-one".