163165974 has 8 divisors (see below), whose sum is σ = 326331960. Its totient is φ = 54388656.

The previous prime is 163165973. The next prime is 163165997. The reversal of 163165974 is 479561361.

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

163165974 is an admirable number.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163165973) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13597159 + ... + 13597170.

It is an arithmetic number, because the mean of its divisors is an integer number (40791495).

Almost surely, 2^163165974 is an apocalyptic number.

163165974 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

163165974 is a wasteful number, since it uses less digits than its factorization.

163165974 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27194334.

The product of its digits is 136080, while the sum is 42.

The square root of 163165974 is about 12773.6437244821. The cubic root of 163165974 is about 546.4409016362.

The spelling of 163165974 in words is "one hundred sixty-three million, one hundred sixty-five thousand, nine hundred seventy-four".