556656506065 has 32 divisors (see below), whose sum is σ = 746900766720. Its totient is φ = 394845393600.

The previous prime is 556656506053. The next prime is 556656506117. The reversal of 556656506065 is 560605656655.

It is not a de Polignac number, because 556656506065 - 2⁵ = 556656506033 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (55).

It is a junction number, because it is equal to n+sod(n) for n = 556656505997 and 556656506015.

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, 263251 + ... + 1087480.

It is an arithmetic number, because the mean of its divisors is an integer number (23340648960).

Almost surely, 2^556656506065 is an apocalyptic number.

556656506065 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

556656506065 is a deficient number, since it is larger than the sum of its proper divisors (190244260655).

556656506065 is a wasteful number, since it uses less digits than its factorization.

556656506065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1350933.

The product of its (nonzero) digits is 24300000, while the sum is 55.

The spelling of 556656506065 in words is "five hundred fifty-six billion, six hundred fifty-six million, five hundred six thousand, sixty-five".