22155253020 has 36 divisors (see below), whose sum is σ = 67204268040. Its totient is φ = 5908067424.

The previous prime is 22155253019. The next prime is 22155253037. The reversal of 22155253020 is 2035255122.

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

It is a congruent number.

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, 61542190 + ... + 61542549.

Almost surely, 2^22155253020 is an apocalyptic number.

22155253020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22155253020 is an abundant number, since it is smaller than the sum of its proper divisors (45049015020).

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

22155253020 is a wasteful number, since it uses less digits than its factorization.

22155253020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123084754 (or 123084749 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 27.

The spelling of 22155253020 in words is "twenty-two billion, one hundred fifty-five million, two hundred fifty-three thousand, twenty".