556798505897655 has 48 divisors (see below), whose sum is σ = 1106470794072384. Its totient is φ = 253733505661440.

The previous prime is 556798505897617. The next prime is 556798505897693.

556798505897655 is a `hidden beast` number, since 5 + 5 + 6 + 7 + 9 + 8 + 505 + 8 + 97 + 6 + 5 + 5 = 666.

556798505897655 is nontrivially palindromic in base 10.

It is an interprime number because it is at equal distance from previous prime (556798505897617) and next prime (556798505897693).

It is not a de Polignac number, because 556798505897655 - 2⁷ = 556798505897527 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2787935326 + ... + 2788135035.

It is an arithmetic number, because the mean of its divisors is an integer number (23051474876508).

Almost surely, 2^{556798505897655} is an apocalyptic number.

556798505897655 is a deficient number, since it is larger than the sum of its proper divisors (549672288174729).

556798505897655 is a wasteful number, since it uses less digits than its factorization.

556798505897655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5576070696 (or 5576070693 counting only the distinct ones).

The product of its (nonzero) digits is 142884000000, while the sum is 90.

The spelling of 556798505897655 in words is "five hundred fifty-six trillion, seven hundred ninety-eight billion, five hundred five million, eight hundred ninety-seven thousand, six hundred fifty-five".