22650515680 has 72 divisors (see below), whose sum is σ = 57944846232. Its totient is φ = 8363257344.

The previous prime is 22650515677. The next prime is 22650515681. The reversal of 22650515680 is 8651505622.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22650515681) 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, 391794 + ... + 445873.

It is an arithmetic number, because the mean of its divisors is an integer number (804789531).

Almost surely, 2^22650515680 is an apocalyptic number.

22650515680 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22650515680 is an abundant number, since it is smaller than the sum of its proper divisors (35294330552).

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

22650515680 is a wasteful number, since it uses less digits than its factorization.

22650515680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 837708 (or 837687 counting only the distinct ones).

The product of its (nonzero) digits is 144000, while the sum is 40.

The spelling of 22650515680 in words is "twenty-two billion, six hundred fifty million, five hundred fifteen thousand, six hundred eighty".