55555550016 has 56 divisors (see below), whose sum is σ = 148417873344. Its totient is φ = 18338718720.

The previous prime is 55555549997. The next prime is 55555550033. The reversal of 55555550016 is 61005555555.

It is a self number, because there is not a number n which added to its sum of digits gives 55555550016.

It is a congruent number.

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, 1384845 + ... + 1424396.

Almost surely, 2^55555550016 is an apocalyptic number.

It is an amenable number.

55555550016 is an abundant number, since it is smaller than the sum of its proper divisors (92862323328).

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

55555550016 is a wasteful number, since it uses less digits than its factorization.

55555550016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2809359 (or 2809349 counting only the distinct ones).

The product of its (nonzero) digits is 468750, while the sum is 42.

The spelling of 55555550016 in words is "fifty-five billion, five hundred fifty-five million, five hundred fifty thousand, sixteen".