659131131956 has 48 divisors (see below), whose sum is σ = 1282559443200. Its totient is φ = 293843022720.

The previous prime is 659131131941. The next prime is 659131131961.

659131131956 is nontrivially palindromic in base 10.

659131131956 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×659131131956² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6401570 + ... + 6503718.

It is an arithmetic number, because the mean of its divisors is an integer number (26719988400).

Almost surely, 2^659131131956 is an apocalyptic number.

It is an amenable number.

659131131956 is a deficient number, since it is larger than the sum of its proper divisors (623428311244).

659131131956 is a wasteful number, since it uses less digits than its factorization.

659131131956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104984 (or 104982 counting only the distinct ones).

The product of its digits is 656100, while the sum is 50.

The spelling of 659131131956 in words is "six hundred fifty-nine billion, one hundred thirty-one million, one hundred thirty-one thousand, nine hundred fifty-six".