22505515604 has 48 divisors (see below), whose sum is σ = 46356245376. Its totient is φ = 9425289600.

The previous prime is 22505515601. The next prime is 22505515609. The reversal of 22505515604 is 40651550522.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22505515601) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 273089 + ... + 345815.

It is an arithmetic number, because the mean of its divisors is an integer number (965755112).

Almost surely, 2^22505515604 is an apocalyptic number.

It is an amenable number.

22505515604 is an abundant number, since it is smaller than the sum of its proper divisors (23850729772).

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

22505515604 is a wasteful number, since it uses less digits than its factorization.

22505515604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73296 (or 73294 counting only the distinct ones).

The product of its (nonzero) digits is 60000, while the sum is 35.

The spelling of 22505515604 in words is "twenty-two billion, five hundred five million, five hundred fifteen thousand, six hundred four".