555550505156 has 24 divisors (see below), whose sum is σ = 977567965920. Its totient is φ = 276248259392.

The previous prime is 555550505137. The next prime is 555550505179. The reversal of 555550505156 is 651505055555.

It is a self number, because there is not a number n which added to its sum of digits gives 555550505156.

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, 410375 + ... + 1131153.

It is an arithmetic number, because the mean of its divisors is an integer number (40731998580).

Almost surely, 2^555550505156 is an apocalyptic number.

It is an amenable number.

555550505156 is a deficient number, since it is larger than the sum of its proper divisors (422017460764).

555550505156 is a wasteful number, since it uses less digits than its factorization.

555550505156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 721843 (or 721841 counting only the distinct ones).

The product of its (nonzero) digits is 2343750, while the sum is 47.

The spelling of 555550505156 in words is "five hundred fifty-five billion, five hundred fifty million, five hundred five thousand, one hundred fifty-six".