22015542432 has 96 divisors (see below), whose sum is σ = 62291835648. Its totient is φ = 6767963136.

The previous prime is 22015542413. The next prime is 22015542517. The reversal of 22015542432 is 23424551022.

It is a tau number, because it is divible by the number of its divisors (96).

It is a self number, because there is not a number n which added to its sum of digits gives 22015542432.

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 15 ways as a sum of consecutive naturals, for example, 1506553 + ... + 1521095.

It is an arithmetic number, because the mean of its divisors is an integer number (648873288).

Almost surely, 2^22015542432 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22015542432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31145917824).

22015542432 is an abundant number, since it is smaller than the sum of its proper divisors (40276293216).

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

22015542432 is a wasteful number, since it uses less digits than its factorization.

22015542432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15782 (or 15774 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 30.

The spelling of 22015542432 in words is "twenty-two billion, fifteen million, five hundred forty-two thousand, four hundred thirty-two".