22705513640 has 64 divisors (see below), whose sum is σ = 51926434560. Its totient is φ = 8934220800.

The previous prime is 22705513639. The next prime is 22705513669. The reversal of 22705513640 is 4631550722.

It is a self number, because there is not a number n which added to its sum of digits gives 22705513640.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 603872 + ... + 640368.

It is an arithmetic number, because the mean of its divisors is an integer number (811350540).

Almost surely, 2^22705513640 is an apocalyptic number.

22705513640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22705513640 is an abundant number, since it is smaller than the sum of its proper divisors (29220920920).

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

22705513640 is a wasteful number, since it uses less digits than its factorization.

22705513640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36762 (or 36758 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 35.

The spelling of 22705513640 in words is "twenty-two billion, seven hundred five million, five hundred thirteen thousand, six hundred forty".