56442601664541 has 6 divisors (see below), whose sum is σ = 81528202404350. Its totient is φ = 37628401109688.

The previous prime is 56442601664473. The next prime is 56442601664549. The reversal of 56442601664541 is 14546610624465.

56442601664541 is a `hidden beast` number, since 5 + 6 + 4 + 4 + 26 + 0 + 16 + 64 + 541 = 666.

It can be written as a sum of positive squares in only one way, i.e., 52315507838916 + 4127093825625 = 7232946^2 + 2031525^2 .

It is not a de Polignac number, because 56442601664541 - 2⁷ = 56442601664413 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 (56442601664549) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3135700092466 + ... + 3135700092483.

Almost surely, 2^{56442601664541} is an apocalyptic number.

It is an amenable number.

56442601664541 is a deficient number, since it is larger than the sum of its proper divisors (25085600739809).

56442601664541 is a wasteful number, since it uses less digits than its factorization.

56442601664541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6271400184955 (or 6271400184952 counting only the distinct ones).

The product of its (nonzero) digits is 16588800, while the sum is 54.

The spelling of 56442601664541 in words is "fifty-six trillion, four hundred forty-two billion, six hundred one million, six hundred sixty-four thousand, five hundred forty-one".