55565984816 has 40 divisors (see below), whose sum is σ = 108352898304. Its totient is φ = 27604100160.

The previous prime is 55565984807. The next prime is 55565984833. The reversal of 55565984816 is 61848956555.

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, 9378431 + ... + 9384353.

Almost surely, 2^55565984816 is an apocalyptic number.

It is an amenable number.

55565984816 is a deficient number, since it is larger than the sum of its proper divisors (52786913488).

55565984816 is a wasteful number, since it uses less digits than its factorization.

55565984816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9609 (or 9603 counting only the distinct ones).

The product of its digits is 51840000, while the sum is 62.

The spelling of 55565984816 in words is "fifty-five billion, five hundred sixty-five million, nine hundred eighty-four thousand, eight hundred sixteen".