22604972988991 has 4 divisors (see below), whose sum is σ = 22605179410432. Its totient is φ = 22604766567552.

The previous prime is 22604972988971. The next prime is 22604972989019. The reversal of 22604972988991 is 19988927940622.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 22604972988991 - 2¹¹ = 22604972986943 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22604972988971) 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, 103046370 + ... + 103265503.

It is an arithmetic number, because the mean of its divisors is an integer number (5651294852608).

Almost surely, 2^{22604972988991} is an apocalyptic number.

22604972988991 is a deficient number, since it is larger than the sum of its proper divisors (206421441).

22604972988991 is a wasteful number, since it uses less digits than its factorization.

22604972988991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 206421440.

The product of its (nonzero) digits is 564350976, while the sum is 76.

The spelling of 22604972988991 in words is "twenty-two trillion, six hundred four billion, nine hundred seventy-two million, nine hundred eighty-eight thousand, nine hundred ninety-one".