22531115154 has 64 divisors (see below), whose sum is σ = 48636443520. Its totient is φ = 6935040000.

The previous prime is 22531115153. The next prime is 22531115161. The reversal of 22531115154 is 45151113522.

It is not an unprimeable number, because it can be changed into a prime (22531115153) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8042554 + ... + 8045354.

It is an arithmetic number, because the mean of its divisors is an integer number (759944430).

Almost surely, 2^22531115154 is an apocalyptic number.

22531115154 is an abundant number, since it is smaller than the sum of its proper divisors (26105328366).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22531115154 is a wasteful number, since it uses less digits than its factorization.

22531115154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4587.

The product of its digits is 6000, while the sum is 30.

Adding to 22531115154 its reverse (45151113522), we get a palindrome (67682228676).

The spelling of 22531115154 in words is "twenty-two billion, five hundred thirty-one million, one hundred fifteen thousand, one hundred fifty-four".