5515560660 has 24 divisors (see below), whose sum is σ = 15443570016. Its totient is φ = 1470816160.

The previous prime is 5515560649. The next prime is 5515560683. The reversal of 5515560660 is 660655155.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45962946 + ... + 45963065.

It is an arithmetic number, because the mean of its divisors is an integer number (643482084).

Almost surely, 2^5515560660 is an apocalyptic number.

It is an amenable number.

5515560660 is an abundant number, since it is smaller than the sum of its proper divisors (9928009356).

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

5515560660 is a wasteful number, since it uses less digits than its factorization.

5515560660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91926023 (or 91926021 counting only the distinct ones).

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

The square root of 5515560660 is about 74266.8207209653. The cubic root of 5515560660 is about 1766.8372835497.

The spelling of 5515560660 in words is "five billion, five hundred fifteen million, five hundred sixty thousand, six hundred sixty".