22155235557 has 32 divisors (see below), whose sum is σ = 36369672192. Its totient is φ = 11682304704.

The previous prime is 22155235523. The next prime is 22155235603. The reversal of 22155235557 is 75553255122.

It is not a de Polignac number, because 22155235557 - 2⁷ = 22155235429 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22155235517) 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, 901608 + ... + 925854.

It is an arithmetic number, because the mean of its divisors is an integer number (1136552256).

Almost surely, 2^22155235557 is an apocalyptic number.

It is an amenable number.

22155235557 is a deficient number, since it is larger than the sum of its proper divisors (14214436635).

22155235557 is a wasteful number, since it uses less digits than its factorization.

22155235557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27617.

The product of its digits is 525000, while the sum is 42.

The spelling of 22155235557 in words is "twenty-two billion, one hundred fifty-five million, two hundred thirty-five thousand, five hundred fifty-seven".