22680861525 has 108 divisors (see below), whose sum is σ = 50036626692. Its totient is φ = 9758407680.

The previous prime is 22680861523. The next prime is 22680861529. The reversal of 22680861525 is 52516808622.

It is a happy number.

22680861525 is a `hidden beast` number, since 2 + 2 + 6 + 8 + 0 + 8 + 615 + 25 = 666.

It can be written as a sum of positive squares in 6 ways, for example, as 1189008324 + 21491853201 = 34482^2 + 146601^2 .

It is not a de Polignac number, because 22680861525 - 2¹ = 22680861523 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22680861523) by changing a digit.

It is a polite number, since it can be written in 107 ways as a sum of consecutive naturals, for example, 126919 + ... + 247931.

It is an arithmetic number, because the mean of its divisors is an integer number (463302099).

Almost surely, 2^22680861525 is an apocalyptic number.

22680861525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

22680861525 is an abundant number, since it is smaller than the sum of its proper divisors (27355765167).

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

22680861525 is a wasteful number, since it uses less digits than its factorization.

22680861525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121060 (or 121045 counting only the distinct ones).

The product of its (nonzero) digits is 460800, while the sum is 45.

The spelling of 22680861525 in words is "twenty-two billion, six hundred eighty million, eight hundred sixty-one thousand, five hundred twenty-five".