163173251023 has 8 divisors (see below), whose sum is σ = 164654252928. Its totient is φ = 161692898304.

The previous prime is 163173251011. The next prime is 163173251177. The reversal of 163173251023 is 320152371361.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 163173251023 - 2³⁷ = 25734297551 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 163173251023.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163173221023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 349986 + ... + 669952.

It is an arithmetic number, because the mean of its divisors is an integer number (20581781616).

Almost surely, 2^163173251023 is an apocalyptic number.

163173251023 is a deficient number, since it is larger than the sum of its proper divisors (1481001905).

163173251023 is a wasteful number, since it uses less digits than its factorization.

163173251023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 324593.

The product of its (nonzero) digits is 22680, while the sum is 34.

The spelling of 163173251023 in words is "one hundred sixty-three billion, one hundred seventy-three million, two hundred fifty-one thousand, twenty-three".