22971586081 has 2 divisors, whose sum is σ = 22971586082. Its totient is φ = 22971586080.

The previous prime is 22971586063. The next prime is 22971586159. The reversal of 22971586081 is 18068517922.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22166445456 + 805140625 = 148884^2 + 28375^2 .

It is a cyclic number.

It is not a de Polignac number, because 22971586081 - 2⁷ = 22971585953 is a prime.

It is a super-2 number, since 2×22971586081² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (22971586061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11485793040 + 11485793041.

It is an arithmetic number, because the mean of its divisors is an integer number (11485793041).

Almost surely, 2^22971586081 is an apocalyptic number.

It is an amenable number.

22971586081 is a deficient number, since it is larger than the sum of its proper divisors (1).

22971586081 is an equidigital number, since it uses as much as digits as its factorization.

22971586081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 483840, while the sum is 49.

The spelling of 22971586081 in words is "twenty-two billion, nine hundred seventy-one million, five hundred eighty-six thousand, eighty-one".