56215136663 has 24 divisors (see below), whose sum is σ = 66047551632. Its totient is φ = 47702788224.

The previous prime is 56215136651. The next prime is 56215136669. The reversal of 56215136663 is 36663151265.

It is not a de Polignac number, because 56215136663 - 2⁶ = 56215136599 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56215136669) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11726195 + ... + 11730987.

It is an arithmetic number, because the mean of its divisors is an integer number (2751981318).

Almost surely, 2^56215136663 is an apocalyptic number.

56215136663 is a deficient number, since it is larger than the sum of its proper divisors (9832414969).

56215136663 is a wasteful number, since it uses less digits than its factorization.

56215136663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7151 (or 7144 counting only the distinct ones).

The product of its digits is 583200, while the sum is 44.

The spelling of 56215136663 in words is "fifty-six billion, two hundred fifteen million, one hundred thirty-six thousand, six hundred sixty-three".