22163747326721 has 32 divisors (see below), whose sum is σ = 29985480999936. Its totient is φ = 15820261704000.

The previous prime is 22163747326717. The next prime is 22163747326723. The reversal of 22163747326721 is 12762374736122.

It is not a de Polignac number, because 22163747326721 - 2² = 22163747326717 is a prime.

It is a super-3 number, since 3×22163747326721³ (a number of 41 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (22163747326723) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 84378815 + ... + 84641076.

It is an arithmetic number, because the mean of its divisors is an integer number (937046281248).

Almost surely, 2^{22163747326721} is an apocalyptic number.

It is an amenable number.

22163747326721 is a deficient number, since it is larger than the sum of its proper divisors (7821733673215).

22163747326721 is a wasteful number, since it uses less digits than its factorization.

22163747326721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169020053.

The product of its digits is 7112448, while the sum is 53.

The spelling of 22163747326721 in words is "twenty-two trillion, one hundred sixty-three billion, seven hundred forty-seven million, three hundred twenty-six thousand, seven hundred twenty-one".