22865011157 has 4 divisors (see below), whose sum is σ = 22880430720. Its totient is φ = 22849591596.

The previous prime is 22865011139. The next prime is 22865011171. The reversal of 22865011157 is 75111056822.

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 22865011157 - 2¹⁸ = 22864749013 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22865011157.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22865011357) 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, 7707557 + ... + 7710522.

It is an arithmetic number, because the mean of its divisors is an integer number (5720107680).

Almost surely, 2^22865011157 is an apocalyptic number.

It is an amenable number.

22865011157 is a deficient number, since it is larger than the sum of its proper divisors (15419563).

22865011157 is a wasteful number, since it uses less digits than its factorization.

22865011157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15419562.

The product of its (nonzero) digits is 33600, while the sum is 38.

Adding to 22865011157 its reverse (75111056822), we get a palindrome (97976067979).

The spelling of 22865011157 in words is "twenty-two billion, eight hundred sixty-five million, eleven thousand, one hundred fifty-seven".