56516407663 has 8 divisors (see below), whose sum is σ = 56654014608. Its totient is φ = 56378846784.

The previous prime is 56516407583. The next prime is 56516407667. The reversal of 56516407663 is 36670461565.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 56516407663 - 2⁹ = 56516407151 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 (56516407667) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4988281 + ... + 4999597.

It is an arithmetic number, because the mean of its divisors is an integer number (7081751826).

Almost surely, 2^56516407663 is an apocalyptic number.

56516407663 is a deficient number, since it is larger than the sum of its proper divisors (137606945).

56516407663 is a wasteful number, since it uses less digits than its factorization.

56516407663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23033.

The product of its (nonzero) digits is 2721600, while the sum is 49.

The spelling of 56516407663 in words is "fifty-six billion, five hundred sixteen million, four hundred seven thousand, six hundred sixty-three".