22293378180 has 36 divisors (see below), whose sum is σ = 67623247692. Its totient is φ = 5944900800.

The previous prime is 22293378157. The next prime is 22293378193. The reversal of 22293378180 is 8187339222.

It can be written as a sum of positive squares in 2 ways, for example, as 6724328004 + 15569050176 = 82002^2 + 124776^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×22293378180² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 61925871 + ... + 61926230.

It is an arithmetic number, because the mean of its divisors is an integer number (1878423547).

Almost surely, 2^22293378180 is an apocalyptic number.

22293378180 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22293378180 is an abundant number, since it is smaller than the sum of its proper divisors (45329869512).

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

22293378180 is a wasteful number, since it uses less digits than its factorization.

22293378180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123852116 (or 123852111 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 45.

The spelling of 22293378180 in words is "twenty-two billion, two hundred ninety-three million, three hundred seventy-eight thousand, one hundred eighty".