56657144123 has 4 divisors (see below), whose sum is σ = 57218106048. Its totient is φ = 56096182200.

The previous prime is 56657144099. The next prime is 56657144143. The reversal of 56657144123 is 32144175665.

56657144123 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 56657144123 - 2⁸ = 56657143867 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56657144143) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 280480811 + ... + 280481012.

It is an arithmetic number, because the mean of its divisors is an integer number (14304526512).

Almost surely, 2^56657144123 is an apocalyptic number.

56657144123 is a deficient number, since it is larger than the sum of its proper divisors (560961925).

56657144123 is a wasteful number, since it uses less digits than its factorization.

56657144123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 560961924.

The product of its digits is 604800, while the sum is 44.

The spelling of 56657144123 in words is "fifty-six billion, six hundred fifty-seven million, one hundred forty-four thousand, one hundred twenty-three".