22515313464 has 48 divisors (see below), whose sum is σ = 69690257520. Its totient is φ = 6432946560.

The previous prime is 22515313453. The next prime is 22515313501. The reversal of 22515313464 is 46431351522.

22515313464 is a `hidden beast` number, since 2 + 2 + 515 + 3 + 134 + 6 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22336117 + ... + 22337124.

It is an arithmetic number, because the mean of its divisors is an integer number (1451880365).

Almost surely, 2^22515313464 is an apocalyptic number.

22515313464 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

22515313464 is an abundant number, since it is smaller than the sum of its proper divisors (47174944056).

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

22515313464 is a wasteful number, since it uses less digits than its factorization.

22515313464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44673260 (or 44673253 counting only the distinct ones).

The product of its digits is 86400, while the sum is 36.

Adding to 22515313464 its reverse (46431351522), we get a palindrome (68946664986).

The spelling of 22515313464 in words is "twenty-two billion, five hundred fifteen million, three hundred thirteen thousand, four hundred sixty-four".