55661812018052 has 144 divisors (see below), whose sum is σ = 107076230928576. Its totient is φ = 25295582208000.

The previous prime is 55661812018037. The next prime is 55661812018097. The reversal of 55661812018052 is 25081021816655.

It is a hoax number, since the sum of its digits (50) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 7510698227 + ... + 7510705637.

It is an arithmetic number, because the mean of its divisors is an integer number (743584937004).

Almost surely, 2^{55661812018052} is an apocalyptic number.

It is an amenable number.

55661812018052 is a deficient number, since it is larger than the sum of its proper divisors (51414418910524).

55661812018052 is a wasteful number, since it uses less digits than its factorization.

55661812018052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9078 (or 9059 counting only the distinct ones).

The product of its (nonzero) digits is 1152000, while the sum is 50.

The spelling of 55661812018052 in words is "fifty-five trillion, six hundred sixty-one billion, eight hundred twelve million, eighteen thousand, fifty-two".