55015660660 has 48 divisors (see below), whose sum is σ = 117530663040. Its totient is φ = 21627697280.

The previous prime is 55015660657. The next prime is 55015660673. The reversal of 55015660660 is 6606651055.

55015660660 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

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, 389031 + ... + 511249.

It is an arithmetic number, because the mean of its divisors is an integer number (2448555480).

Almost surely, 2^55015660660 is an apocalyptic number.

It is an amenable number.

55015660660 is an abundant number, since it is smaller than the sum of its proper divisors (62515002380).

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

55015660660 is a wasteful number, since it uses less digits than its factorization.

55015660660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122616 (or 122614 counting only the distinct ones).

The product of its (nonzero) digits is 162000, while the sum is 40.

The spelling of 55015660660 in words is "fifty-five billion, fifteen million, six hundred sixty thousand, six hundred sixty".