555866612838 has 48 divisors (see below), whose sum is σ = 1210696531200. Its totient is φ = 184317149808.

The previous prime is 555866612809. The next prime is 555866612843. The reversal of 555866612838 is 838216668555.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 19281831 + ... + 19310637.

It is an arithmetic number, because the mean of its divisors is an integer number (25222844400).

Almost surely, 2^555866612838 is an apocalyptic number.

555866612838 is an abundant number, since it is smaller than the sum of its proper divisors (654829918362).

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

555866612838 is a wasteful number, since it uses less digits than its factorization.

555866612838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34401 (or 34398 counting only the distinct ones).

The product of its digits is 82944000, while the sum is 63.

The spelling of 555866612838 in words is "five hundred fifty-five billion, eight hundred sixty-six million, six hundred twelve thousand, eight hundred thirty-eight".