555511977672 has 32 divisors (see below), whose sum is σ = 1398771175200. Its totient is φ = 183838495104.

The previous prime is 555511977661. The next prime is 555511977677. The reversal of 555511977672 is 276779115555.

It is not an unprimeable number, because it can be changed into a prime (555511977677) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 83256853 + ... + 83263524.

It is an arithmetic number, because the mean of its divisors is an integer number (43711599225).

Almost surely, 2^555511977672 is an apocalyptic number.

It is an amenable number.

555511977672 is an abundant number, since it is smaller than the sum of its proper divisors (843259197528).

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

555511977672 is a wasteful number, since it uses less digits than its factorization.

555511977672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166520525 (or 166520521 counting only the distinct ones).

The product of its digits is 23152500, while the sum is 60.

The spelling of 555511977672 in words is "five hundred fifty-five billion, five hundred eleven million, nine hundred seventy-seven thousand, six hundred seventy-two".