22940537657 has 4 divisors (see below), whose sum is σ = 23060645376. Its totient is φ = 22820429940.

The previous prime is 22940537603. The next prime is 22940537671. The reversal of 22940537657 is 75673504922.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 22940537657 - 2⁶ = 22940537593 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22940533657) 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, 60053573 + ... + 60053954.

It is an arithmetic number, because the mean of its divisors is an integer number (5765161344).

Almost surely, 2^22940537657 is an apocalyptic number.

It is an amenable number.

22940537657 is a deficient number, since it is larger than the sum of its proper divisors (120107719).

22940537657 is a wasteful number, since it uses less digits than its factorization.

22940537657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120107718.

The product of its (nonzero) digits is 3175200, while the sum is 50.

The spelling of 22940537657 in words is "twenty-two billion, nine hundred forty million, five hundred thirty-seven thousand, six hundred fifty-seven".