22515794496 has 84 divisors (see below), whose sum is σ = 69501902652. Its totient is φ = 6927934464.

The previous prime is 22515794491. The next prime is 22515794527. The reversal of 22515794496 is 69449751522.

It is a happy number.

22515794496 is a `hidden beast` number, since 2 + 25 + 1 + 579 + 4 + 49 + 6 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 9382634496 + 13133160000 = 96864^2 + 114600^2 .

It is a super-2 number, since 2×22515794496² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (22515794491) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1495971 + ... + 1510946.

It is an arithmetic number, because the mean of its divisors is an integer number (827403603).

Almost surely, 2^22515794496 is an apocalyptic number.

22515794496 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

22515794496 is an abundant number, since it is smaller than the sum of its proper divisors (46986108156).

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

22515794496 is a wasteful number, since it uses less digits than its factorization.

22515794496 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3006948 (or 3006935 counting only the distinct ones).

The product of its digits is 5443200, while the sum is 54.

The spelling of 22515794496 in words is "twenty-two billion, five hundred fifteen million, seven hundred ninety-four thousand, four hundred ninety-six".