55615530664 has 16 divisors (see below), whose sum is σ = 104309284320. Its totient is φ = 27799721520.

The previous prime is 55615530631. The next prime is 55615530713. The reversal of 55615530664 is 46603551655.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 976042 + ... + 1031449.

It is an arithmetic number, because the mean of its divisors is an integer number (6519330270).

Almost surely, 2^55615530664 is an apocalyptic number.

It is an amenable number.

55615530664 is a deficient number, since it is larger than the sum of its proper divisors (48693753656).

55615530664 is a wasteful number, since it uses less digits than its factorization.

55615530664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2010960 (or 2010956 counting only the distinct ones).

The product of its (nonzero) digits is 1620000, while the sum is 46.

The spelling of 55615530664 in words is "fifty-five billion, six hundred fifteen million, five hundred thirty thousand, six hundred sixty-four".