56608037663 has 4 divisors (see below), whose sum is σ = 57244083120. Its totient is φ = 55971992208.

The previous prime is 56608037653. The next prime is 56608037687. The reversal of 56608037663 is 36673080665.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 56608037663 - 2¹² = 56608033567 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 (56608037653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 318022595 + ... + 318022772.

It is an arithmetic number, because the mean of its divisors is an integer number (14311020780).

Almost surely, 2^56608037663 is an apocalyptic number.

56608037663 is a deficient number, since it is larger than the sum of its proper divisors (636045457).

56608037663 is an equidigital number, since it uses as much as digits as its factorization.

56608037663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 636045456.

The product of its (nonzero) digits is 3265920, while the sum is 50.

The spelling of 56608037663 in words is "fifty-six billion, six hundred eight million, thirty-seven thousand, six hundred sixty-three".