56707122060721 has 16 divisors (see below), whose sum is σ = 61885668492288. Its totient is φ = 51532470460800.

The previous prime is 56707122060713. The next prime is 56707122060731. The reversal of 56707122060721 is 12706022170765.

It is a cyclic number.

It is not a de Polignac number, because 56707122060721 - 2³ = 56707122060713 is a prime.

It is a super-2 number, since 2×56707122060721² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56707122060731) 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, 506379691 + ... + 506491663.

It is an arithmetic number, because the mean of its divisors is an integer number (3867854280768).

Almost surely, 2^{56707122060721} is an apocalyptic number.

It is an amenable number.

56707122060721 is a deficient number, since it is larger than the sum of its proper divisors (5178546431567).

56707122060721 is a wasteful number, since it uses less digits than its factorization.

56707122060721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128952.

The product of its (nonzero) digits is 493920, while the sum is 46.

The spelling of 56707122060721 in words is "fifty-six trillion, seven hundred seven billion, one hundred twenty-two million, sixty thousand, seven hundred twenty-one".