55560666516 has 48 divisors (see below), whose sum is σ = 129888353280. Its totient is φ = 18485007840.

The previous prime is 55560666461. The next prime is 55560666523. The reversal of 55560666516 is 61566606555.

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, 20893995 + ... + 20896653.

It is an arithmetic number, because the mean of its divisors is an integer number (2706007360).

Almost surely, 2^55560666516 is an apocalyptic number.

It is an amenable number.

55560666516 is an abundant number, since it is smaller than the sum of its proper divisors (74327686764).

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

55560666516 is a wasteful number, since it uses less digits than its factorization.

55560666516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5324 (or 5322 counting only the distinct ones).

The product of its (nonzero) digits is 4860000, while the sum is 51.

The spelling of 55560666516 in words is "fifty-five billion, five hundred sixty million, six hundred sixty-six thousand, five hundred sixteen".