55056155616066 has 24 divisors (see below), whose sum is σ = 121032540446832. Its totient is φ = 16683683519800.

The previous prime is 55056155616031. The next prime is 55056155616071. The reversal of 55056155616066 is 66061655165055.

It is a junction number, because it is equal to n+sod(n) for n = 55056155615997 and 55056155616015.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 37917461820 + ... + 37917463271.

It is an arithmetic number, because the mean of its divisors is an integer number (5043022518618).

Almost surely, 2^{55056155616066} is an apocalyptic number.

55056155616066 is an abundant number, since it is smaller than the sum of its proper divisors (65976384830766).

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

55056155616066 is a wasteful number, since it uses less digits than its factorization.

55056155616066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75834925118 (or 75834925107 counting only the distinct ones).

The product of its (nonzero) digits is 24300000, while the sum is 57.

The spelling of 55056155616066 in words is "fifty-five trillion, fifty-six billion, one hundred fifty-five million, six hundred sixteen thousand, sixty-six".