22155150400 has 42 divisors (see below), whose sum is σ = 54515520890. Its totient is φ = 8862059520.

The previous prime is 22155150389. The next prime is 22155150419. The reversal of 22155150400 is 405155122.

It can be written as a sum of positive squares in 3 ways, for example, as 1181159424 + 20973990976 = 34368^2 + 144824^2 .

It is a Harshad number since it is a multiple of its sum of digits (25).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6921885 + ... + 6925084.

Almost surely, 2^22155150400 is an apocalyptic number.

22155150400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22155150400 is an abundant number, since it is smaller than the sum of its proper divisors (32360370490).

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

22155150400 is a wasteful number, since it uses less digits than its factorization.

22155150400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13846991 (or 13846976 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 25.

The spelling of 22155150400 in words is "twenty-two billion, one hundred fifty-five million, one hundred fifty thousand, four hundred".