22652599640 has 32 divisors (see below), whose sum is σ = 55601836560. Its totient is φ = 8237308800.

The previous prime is 22652599639. The next prime is 22652599657. The reversal of 22652599640 is 4699525622.

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 7 ways as a sum of consecutive naturals, for example, 25741151 + ... + 25742030.

Almost surely, 2^22652599640 is an apocalyptic number.

22652599640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22652599640 is an abundant number, since it is smaller than the sum of its proper divisors (32949236920).

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

22652599640 is a wasteful number, since it uses less digits than its factorization.

22652599640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51483203 (or 51483199 counting only the distinct ones).

The product of its (nonzero) digits is 2332800, while the sum is 50.

The spelling of 22652599640 in words is "twenty-two billion, six hundred fifty-two million, five hundred ninety-nine thousand, six hundred forty".