55939570326816 has 192 divisors, whose sum is σ = 165979384381440. Its totient is φ = 16349655895040.

The previous prime is 55939570326797. The next prime is 55939570326821. The reversal of 55939570326816 is 61862307593955.

It is a Smith number, since the sum of its digits (69) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5168160 + ... + 11772383.

It is an arithmetic number, because the mean of its divisors is an integer number (864475960320).

Almost surely, 2^{55939570326816} is an apocalyptic number.

It is an amenable number.

55939570326816 is an abundant number, since it is smaller than the sum of its proper divisors (110039814054624).

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

55939570326816 is a wasteful number, since it uses less digits than its factorization.

55939570326816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16940679 (or 16940671 counting only the distinct ones).

The product of its (nonzero) digits is 367416000, while the sum is 69.

The spelling of 55939570326816 in words is "fifty-five trillion, nine hundred thirty-nine billion, five hundred seventy million, three hundred twenty-six thousand, eight hundred sixteen".