56657144133 has 12 divisors (see below), whose sum is σ = 82249346400. Its totient is φ = 37581622056.

The previous prime is 56657144099. The next prime is 56657144143. The reversal of 56657144133 is 33144175665.

56657144133 is a `hidden beast` number, since 5 + 6 + 6 + 571 + 4 + 41 + 33 = 666.

It is not a de Polignac number, because 56657144133 - 2¹² = 56657140037 is a prime.

It is a congruent 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 11 ways as a sum of consecutive naturals, for example, 15815391 + ... + 15818972.

It is an arithmetic number, because the mean of its divisors is an integer number (6854112200).

Almost surely, 2^56657144133 is an apocalyptic number.

It is an amenable number.

56657144133 is a deficient number, since it is larger than the sum of its proper divisors (25592202267).

56657144133 is a wasteful number, since it uses less digits than its factorization.

56657144133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31634568 (or 31634565 counting only the distinct ones).

The product of its digits is 907200, while the sum is 45.

The spelling of 56657144133 in words is "fifty-six billion, six hundred fifty-seven million, one hundred forty-four thousand, one hundred thirty-three".