56446337617021 has 8 divisors (see below), whose sum is σ = 62739668569824. Its totient is φ = 50346647616720.

The previous prime is 56446337617009. The next prime is 56446337617027. The reversal of 56446337617021 is 12071673364465.

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 56446337617021 - 2³⁵ = 56411977878653 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 (56446337617027) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48410237511 + ... + 48410238676.

It is an arithmetic number, because the mean of its divisors is an integer number (7842458571228).

Almost surely, 2^{56446337617021} is an apocalyptic number.

It is an amenable number.

56446337617021 is a deficient number, since it is larger than the sum of its proper divisors (6293330952803).

56446337617021 is a wasteful number, since it uses less digits than its factorization.

56446337617021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96820476251.

The product of its (nonzero) digits is 15240960, while the sum is 55.

The spelling of 56446337617021 in words is "fifty-six trillion, four hundred forty-six billion, three hundred thirty-seven million, six hundred seventeen thousand, twenty-one".