22641365025 has 120 divisors (see below), whose sum is σ = 45274870080. Its totient is φ = 11151423360.

The previous prime is 22641365009. The next prime is 22641365027. The reversal of 22641365025 is 52056314622.

22641365025 is a `hidden beast` number, since 2 + 2 + 641 + 3 + 6 + 5 + 0 + 2 + 5 = 666.

It is not a de Polignac number, because 22641365025 - 2⁴ = 22641365009 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22641365027) by changing a digit.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 1342294 + ... + 1359056.

It is an arithmetic number, because the mean of its divisors is an integer number (377290584).

Almost surely, 2^22641365025 is an apocalyptic number.

22641365025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

22641365025 is a deficient number, since it is larger than the sum of its proper divisors (22633505055).

22641365025 is a wasteful number, since it uses less digits than its factorization.

22641365025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16837 (or 16823 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 36.

Adding to 22641365025 its reverse (52056314622), we get a palindrome (74697679647).

The spelling of 22641365025 in words is "twenty-two billion, six hundred forty-one million, three hundred sixty-five thousand, twenty-five".