22138148625 has 16 divisors (see below), whose sum is σ = 36837879936. Its totient is φ = 11807012400.

The previous prime is 22138148597. The next prime is 22138148651. The reversal of 22138148625 is 52684183122.

It is not a de Polignac number, because 22138148625 - 2⁷ = 22138148497 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29517157 + ... + 29517906.

It is an arithmetic number, because the mean of its divisors is an integer number (2302367496).

Almost surely, 2^22138148625 is an apocalyptic number.

22138148625 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

22138148625 is a deficient number, since it is larger than the sum of its proper divisors (14699731311).

22138148625 is an equidigital number, since it uses as much as digits as its factorization.

22138148625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59035081 (or 59035071 counting only the distinct ones).

The product of its digits is 184320, while the sum is 42.

The spelling of 22138148625 in words is "twenty-two billion, one hundred thirty-eight million, one hundred forty-eight thousand, six hundred twenty-five".