55005615660 has 24 divisors (see below), whose sum is σ = 154015724016. Its totient is φ = 14668164160.

The previous prime is 55005615659. The next prime is 55005615727. The reversal of 55005615660 is 6651650055.

55005615660 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 458380071 + ... + 458380190.

It is an arithmetic number, because the mean of its divisors is an integer number (6417321834).

Almost surely, 2^55005615660 is an apocalyptic number.

It is an amenable number.

55005615660 is an abundant number, since it is smaller than the sum of its proper divisors (99010108356).

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

55005615660 is a wasteful number, since it uses less digits than its factorization.

55005615660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 916760273 (or 916760271 counting only the distinct ones).

The product of its (nonzero) digits is 135000, while the sum is 39.

It can be divided in two parts, 5500561 and 5660, that added together give a triangular number (5506221 = T₃₃₁₈).

The spelling of 55005615660 in words is "fifty-five billion, five million, six hundred fifteen thousand, six hundred sixty".