22909515216 has 80 divisors (see below), whose sum is σ = 67720617984. Its totient is φ = 6537543552.

The previous prime is 22909515191. The next prime is 22909515227. The reversal of 22909515216 is 61251590922.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 235105 + ... + 317951.

Almost surely, 2^22909515216 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 22909515216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33860308992).

22909515216 is an abundant number, since it is smaller than the sum of its proper divisors (44811102768).

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

22909515216 is a wasteful number, since it uses less digits than its factorization.

22909515216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83688 (or 83682 counting only the distinct ones).

The product of its (nonzero) digits is 97200, while the sum is 42.

The spelling of 22909515216 in words is "twenty-two billion, nine hundred nine million, five hundred fifteen thousand, two hundred sixteen".