22140646332 has 96 divisors (see below), whose sum is σ = 60220952064. Its totient is φ = 6199814400.

The previous prime is 22140646301. The next prime is 22140646343. The reversal of 22140646332 is 23364604122.

It is a junction number, because it is equal to n+sod(n) for n = 22140646293 and 22140646302.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5255707 + ... + 5259917.

It is an arithmetic number, because the mean of its divisors is an integer number (627301584).

Almost surely, 2^22140646332 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 22140646332, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30110476032).

22140646332 is an abundant number, since it is smaller than the sum of its proper divisors (38080305732).

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

22140646332 is a wasteful number, since it uses less digits than its factorization.

22140646332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5459 (or 5457 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 33.

The spelling of 22140646332 in words is "twenty-two billion, one hundred forty million, six hundred forty-six thousand, three hundred thirty-two".