22605717538091 has 2 divisors, whose sum is σ = 22605717538092. Its totient is φ = 22605717538090.

The previous prime is 22605717538031. The next prime is 22605717538099. The reversal of 22605717538091 is 19083571750622.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22605717538091 - 2¹⁴ = 22605717521707 is a prime.

It is a super-2 number, since 2×22605717538091² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (22605717538099) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11302858769045 + 11302858769046.

It is an arithmetic number, because the mean of its divisors is an integer number (11302858769046).

Almost surely, 2^{22605717538091} is an apocalyptic number.

22605717538091 is a deficient number, since it is larger than the sum of its proper divisors (1).

22605717538091 is an equidigital number, since it uses as much as digits as its factorization.

22605717538091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6350400, while the sum is 56.

The spelling of 22605717538091 in words is "twenty-two trillion, six hundred five billion, seven hundred seventeen million, five hundred thirty-eight thousand, ninety-one".