55505511511116 has 24 divisors (see below), whose sum is σ = 130382074023600. Its totient is φ = 18377663765952.

The previous prime is 55505511511067. The next prime is 55505511511123. The reversal of 55505511511116 is 61111511550555.

It is a happy number.

It is a super-2 number, since 2×55505511511116² (a number of 28 digits) contains 22 as substring.

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, 15521673691 + ... + 15521677266.

It is an arithmetic number, because the mean of its divisors is an integer number (5432586417650).

Almost surely, 2^{55505511511116} is an apocalyptic number.

It is an amenable number.

55505511511116 is an abundant number, since it is smaller than the sum of its proper divisors (74876562512484).

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

55505511511116 is a wasteful number, since it uses less digits than its factorization.

55505511511116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31043351113 (or 31043351111 counting only the distinct ones).

The product of its (nonzero) digits is 93750, while the sum is 42.

The spelling of 55505511511116 in words is "fifty-five trillion, five hundred five billion, five hundred eleven million, five hundred eleven thousand, one hundred sixteen".