22856375856961 has 4 divisors (see below), whose sum is σ = 22860393506500. Its totient is φ = 22852358207424.

The previous prime is 22856375856953. The next prime is 22856375857013. The reversal of 22856375856961 is 16965857365822.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 22436658460225 + 419717396736 = 4736735^2 + 647856^2 .

It is a cyclic number.

It is not a de Polignac number, because 22856375856961 - 2³ = 22856375856953 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22856375856901) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2008816236 + ... + 2008827613.

It is an arithmetic number, because the mean of its divisors is an integer number (5715098376625).

Almost surely, 2^{22856375856961} is an apocalyptic number.

It is an amenable number.

22856375856961 is a deficient number, since it is larger than the sum of its proper divisors (4017649539).

22856375856961 is an equidigital number, since it uses as much as digits as its factorization.

22856375856961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4017649538.

The product of its digits is 1306368000, while the sum is 73.

The spelling of 22856375856961 in words is "twenty-two trillion, eight hundred fifty-six billion, three hundred seventy-five million, eight hundred fifty-six thousand, nine hundred sixty-one".