651165106056 has 64 divisors (see below), whose sum is σ = 1725968321280. Its totient is φ = 204014976000.

The previous prime is 651165106049. The next prime is 651165106087. The reversal of 651165106056 is 650601561156.

It is a junction number, because it is equal to n+sod(n) for n = 651165105999 and 651165106017.

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, 756171 + ... + 1368986.

It is an arithmetic number, because the mean of its divisors is an integer number (26968255020).

Almost surely, 2^651165106056 is an apocalyptic number.

It is an amenable number.

651165106056 is an abundant number, since it is smaller than the sum of its proper divisors (1074803215224).

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

651165106056 is a wasteful number, since it uses less digits than its factorization.

651165106056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2125934 (or 2125930 counting only the distinct ones).

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

The spelling of 651165106056 in words is "six hundred fifty-one billion, one hundred sixty-five million, one hundred six thousand, fifty-six".