56101601601 has 6 divisors (see below), whose sum is σ = 81035646770. Its totient is φ = 37401067728.

The previous prime is 56101601561. The next prime is 56101601609. The reversal of 56101601601 is 10610610165.

56101601601 is a `hidden beast` number, since 56 + 1 + 0 + 1 + 6 + 0 + 1 + 601 = 666.

It can be written as a sum of positive squares in only one way, i.e., 46548494001 + 9553107600 = 215751^2 + 97740^2 .

It is not a de Polignac number, because 56101601601 - 2¹⁴ = 56101585217 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56101601609) 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, 3116755636 + ... + 3116755653.

Almost surely, 2^56101601601 is an apocalyptic number.

It is an amenable number.

56101601601 is a deficient number, since it is larger than the sum of its proper divisors (24934045169).

56101601601 is a wasteful number, since it uses less digits than its factorization.

56101601601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6233511295 (or 6233511292 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 27.

The spelling of 56101601601 in words is "fifty-six billion, one hundred one million, six hundred one thousand, six hundred one".