163366625 has 8 divisors (see below), whose sum is σ = 203881704. Its totient is φ = 130693200.

The previous prime is 163366607. The next prime is 163366633. The reversal of 163366625 is 526663361.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 4177936 + 159188689 = 2044^2 + 12617^2 .

It is not a de Polignac number, because 163366625 - 2²⁰ = 162318049 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 653342 + ... + 653591.

It is an arithmetic number, because the mean of its divisors is an integer number (25485213).

Almost surely, 2^163366625 is an apocalyptic number.

It is an amenable number.

163366625 is a deficient number, since it is larger than the sum of its proper divisors (40515079).

163366625 is an equidigital number, since it uses as much as digits as its factorization.

163366625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1306948 (or 1306938 counting only the distinct ones).

The product of its digits is 116640, while the sum is 38.

The square root of 163366625 is about 12781.4954132918. The cubic root of 163366625 is about 546.6648024839.

The spelling of 163366625 in words is "one hundred sixty-three million, three hundred sixty-six thousand, six hundred twenty-five".