22641365425 has 144 divisors (see below), whose sum is σ = 35686465920. Its totient is φ = 13943808000.

The previous prime is 22641365407. The next prime is 22641365449. The reversal of 22641365425 is 52456314622.

It is a happy number.

It is not a de Polignac number, because 22641365425 - 2¹⁵ = 22641332657 is a prime.

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 143 ways as a sum of consecutive naturals, for example, 126487986 + ... + 126488164.

It is an arithmetic number, because the mean of its divisors is an integer number (247822680).

Almost surely, 2^22641365425 is an apocalyptic number.

22641365425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

22641365425 is a deficient number, since it is larger than the sum of its proper divisors (13045100495).

22641365425 is a wasteful number, since it uses less digits than its factorization.

22641365425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 332 (or 310 counting only the distinct ones).

The product of its digits is 345600, while the sum is 40.

The spelling of 22641365425 in words is "twenty-two billion, six hundred forty-one million, three hundred sixty-five thousand, four hundred twenty-five".