556465564655 has 256 divisors, whose sum is σ = 975421440000. Its totient is φ = 299622597120.

The previous prime is 556465564639. The next prime is 556465564723.

It is a happy number.

556465564655 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 556465564655 - 2⁴ = 556465564639 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 265108796 + ... + 265110894.

It is an arithmetic number, because the mean of its divisors is an integer number (3810240000).

Almost surely, 2^556465564655 is an apocalyptic number.

556465564655 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

556465564655 is a deficient number, since it is larger than the sum of its proper divisors (418955875345).

556465564655 is a wasteful number, since it uses less digits than its factorization.

556465564655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2219 (or 2205 counting only the distinct ones).

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

The spelling of 556465564655 in words is "five hundred fifty-six billion, four hundred sixty-five million, five hundred sixty-four thousand, six hundred fifty-five".