22388505500 has 24 divisors (see below), whose sum is σ = 48896497104. Its totient is φ = 8955402000.

The previous prime is 22388505479. The next prime is 22388505511. The reversal of 22388505500 is 550588322.

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22388006 + ... + 22389005.

It is an arithmetic number, because the mean of its divisors is an integer number (2037354046).

Almost surely, 2^22388505500 is an apocalyptic number.

22388505500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22388505500 is an abundant number, since it is smaller than the sum of its proper divisors (26507991604).

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

22388505500 is a wasteful number, since it uses less digits than its factorization.

22388505500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44777030 (or 44777018 counting only the distinct ones).

The product of its (nonzero) digits is 96000, while the sum is 38.

The spelling of 22388505500 in words is "twenty-two billion, three hundred eighty-eight million, five hundred five thousand, five hundred".