22140764637 has 16 divisors (see below), whose sum is σ = 29598908928. Its totient is φ = 14721603120.

The previous prime is 22140764627. The next prime is 22140764641. The reversal of 22140764637 is 73646704122.

It is not a de Polignac number, because 22140764637 - 2⁷ = 22140764509 is a prime.

It is a super-2 number, since 2×22140764637² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22140764617) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3241608 + ... + 3248430.

It is an arithmetic number, because the mean of its divisors is an integer number (1849931808).

Almost surely, 2^22140764637 is an apocalyptic number.

It is an amenable number.

22140764637 is a deficient number, since it is larger than the sum of its proper divisors (7458144291).

22140764637 is a wasteful number, since it uses less digits than its factorization.

22140764637 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9520.

The product of its (nonzero) digits is 338688, while the sum is 42.

The spelling of 22140764637 in words is "twenty-two billion, one hundred forty million, seven hundred sixty-four thousand, six hundred thirty-seven".