56151001655 has 16 divisors (see below), whose sum is σ = 77034141504. Its totient is φ = 38490017280.

The previous prime is 56151001651. The next prime is 56151001679. The reversal of 56151001655 is 55610015165.

56151001655 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 56151001655 - 2² = 56151001651 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56151001651) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 180242 + ... + 380511.

It is an arithmetic number, because the mean of its divisors is an integer number (4814633844).

Almost surely, 2^56151001655 is an apocalyptic number.

56151001655 is a deficient number, since it is larger than the sum of its proper divisors (20883139849).

56151001655 is a wasteful number, since it uses less digits than its factorization.

56151001655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 563626.

The product of its (nonzero) digits is 22500, while the sum is 35.

The spelling of 56151001655 in words is "fifty-six billion, one hundred fifty-one million, one thousand, six hundred fifty-five".