163125001999928 has 8 divisors (see below), whose sum is σ = 305859378749880. Its totient is φ = 81562500999960.

The previous prime is 163125001999909. The next prime is 163125001999987. The reversal of 163125001999928 is 829999100521361.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10195312624988 + ... + 10195312625003.

It is an arithmetic number, because the mean of its divisors is an integer number (38232422343735).

Almost surely, 2^{163125001999928} is an apocalyptic number.

It is an amenable number.

163125001999928 is a deficient number, since it is larger than the sum of its proper divisors (142734376749952).

163125001999928 is a wasteful number, since it uses less digits than its factorization.

163125001999928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20390625249997 (or 20390625249993 counting only the distinct ones).

The product of its (nonzero) digits is 18895680, while the sum is 65.

The spelling of 163125001999928 in words is "one hundred sixty-three trillion, one hundred twenty-five billion, one million, nine hundred ninety-nine thousand, nine hundred twenty-eight".