556546645655 has 96 divisors (see below), whose sum is σ = 904471177344. Its totient is φ = 319904640000.

The previous prime is 556546645649. The next prime is 556546645691.

It is a happy number.

556546645655 is nontrivially palindromic in base 10.

556546645655 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 556546645655 - 2⁴ = 556546645639 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 56206205 + ... + 56216105.

It is an arithmetic number, because the mean of its divisors is an integer number (9421574764).

Almost surely, 2^556546645655 is an apocalyptic number.

556546645655 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

556546645655 is a deficient number, since it is larger than the sum of its proper divisors (347924531689).

556546645655 is a wasteful number, since it uses less digits than its factorization.

556546645655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10969 (or 10958 counting only the distinct ones).

The product of its digits is 324000000, while the sum is 62.

The spelling of 556546645655 in words is "five hundred fifty-six billion, five hundred forty-six million, six hundred forty-five thousand, six hundred fifty-five".