55665015012 has 72 divisors (see below), whose sum is σ = 146876585856. Its totient is φ = 17742219264.

The previous prime is 55665015011. The next prime is 55665015047. The reversal of 55665015012 is 21051056655.

55665015012 is a `hidden beast` number, since 556 + 6 + 50 + 1 + 50 + 1 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (55665015011) 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, 2852673 + ... + 2872119.

Almost surely, 2^55665015012 is an apocalyptic number.

It is an amenable number.

55665015012 is an abundant number, since it is smaller than the sum of its proper divisors (91211570844).

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

55665015012 is a wasteful number, since it uses less digits than its factorization.

55665015012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22937 (or 22932 counting only the distinct ones).

The product of its (nonzero) digits is 45000, while the sum is 36.

The spelling of 55665015012 in words is "fifty-five billion, six hundred sixty-five million, fifteen thousand, twelve".