65565150556 has 24 divisors (see below), whose sum is σ = 115890518016. Its totient is φ = 32454681840.

The previous prime is 65565150527. The next prime is 65565150577. The reversal of 65565150556 is 65505156556.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 99051 + ... + 375421.

It is an arithmetic number, because the mean of its divisors is an integer number (4828771584).

Almost surely, 2^65565150556 is an apocalyptic number.

It is an amenable number.

65565150556 is a deficient number, since it is larger than the sum of its proper divisors (50325367460).

65565150556 is a wasteful number, since it uses less digits than its factorization.

65565150556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 276969 (or 276967 counting only the distinct ones).

The product of its (nonzero) digits is 3375000, while the sum is 49.

The spelling of 65565150556 in words is "sixty-five billion, five hundred sixty-five million, one hundred fifty thousand, five hundred fifty-six".