163654936925 has 12 divisors (see below), whose sum is σ = 203416459680. Its totient is φ = 130611473520.

The previous prime is 163654936919. The next prime is 163654936957. The reversal of 163654936925 is 529639456361.

It is not a de Polignac number, because 163654936925 - 2⁴ = 163654936909 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 11 ways as a sum of consecutive naturals, for example, 7801217 + ... + 7822166.

It is an arithmetic number, because the mean of its divisors is an integer number (16951371640).

Almost surely, 2^163654936925 is an apocalyptic number.

It is an amenable number.

163654936925 is a deficient number, since it is larger than the sum of its proper divisors (39761522755).

163654936925 is a wasteful number, since it uses less digits than its factorization.

163654936925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15623812 (or 15623807 counting only the distinct ones).

The product of its digits is 31492800, while the sum is 59.

The spelling of 163654936925 in words is "one hundred sixty-three billion, six hundred fifty-four million, nine hundred thirty-six thousand, nine hundred twenty-five".