56655394799 has 8 divisors (see below), whose sum is σ = 57126457008. Its totient is φ = 56186275840.

The previous prime is 56655394793. The next prime is 56655394837. The reversal of 56655394799 is 99749355665.

It is a happy number.

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 56655394799 - 2¹² = 56655390703 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 (56655394793) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 427232 + ... + 543909.

It is an arithmetic number, because the mean of its divisors is an integer number (7140807126).

Almost surely, 2^56655394799 is an apocalyptic number.

56655394799 is a deficient number, since it is larger than the sum of its proper divisors (471062209).

56655394799 is a wasteful number, since it uses less digits than its factorization.

56655394799 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 971625.

The product of its digits is 275562000, while the sum is 68.

The spelling of 56655394799 in words is "fifty-six billion, six hundred fifty-five million, three hundred ninety-four thousand, seven hundred ninety-nine".