22772157180 has 24 divisors (see below), whose sum is σ = 63762040272. Its totient is φ = 6072575232.

The previous prime is 22772157167. The next prime is 22772157217. The reversal of 22772157180 is 8175127722.

It is a super-2 number, since 2×22772157180² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 189767917 + ... + 189768036.

It is an arithmetic number, because the mean of its divisors is an integer number (2656751678).

Almost surely, 2^22772157180 is an apocalyptic number.

22772157180 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22772157180 is an abundant number, since it is smaller than the sum of its proper divisors (40989883092).

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

22772157180 is a wasteful number, since it uses less digits than its factorization.

22772157180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 379535965 (or 379535963 counting only the distinct ones).

The product of its (nonzero) digits is 109760, while the sum is 42.

The spelling of 22772157180 in words is "twenty-two billion, seven hundred seventy-two million, one hundred fifty-seven thousand, one hundred eighty".