555564727465556 has 24 divisors (see below), whose sum is σ = 1006786888369920. Its totient is φ = 267930819504992.

The previous prime is 555564727465549. The next prime is 555564727465637. The reversal of 555564727465556 is 655564727465555.

It is a congruent number.

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, 2435975036 + ... + 2436203091.

It is an arithmetic number, because the mean of its divisors is an integer number (41949453682080).

Almost surely, 2^{555564727465556} is an apocalyptic number.

It is an amenable number.

555564727465556 is a deficient number, since it is larger than the sum of its proper divisors (451222160904364).

555564727465556 is a wasteful number, since it uses less digits than its factorization.

555564727465556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4872179143 (or 4872179141 counting only the distinct ones).

The product of its digits is 26460000000, while the sum is 77.

Subtracting 555564727465556 from its reverse (655564727465555), we obtain a palindrome (99999999999999).

The spelling of 555564727465556 in words is "five hundred fifty-five trillion, five hundred sixty-four billion, seven hundred twenty-seven million, four hundred sixty-five thousand, five hundred fifty-six".