163377906 has 16 divisors (see below), whose sum is σ = 332921664. Its totient is φ = 53431664.

The previous prime is 163377883. The next prime is 163377911. The reversal of 163377906 is 609773361.

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 Curzon 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 7 ways as a sum of consecutive naturals, for example, 256566 + ... + 257201.

It is an arithmetic number, because the mean of its divisors is an integer number (20807604).

Almost surely, 2^163377906 is an apocalyptic number.

163377906 is an abundant number, since it is smaller than the sum of its proper divisors (169543758).

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

163377906 is a wasteful number, since it uses less digits than its factorization.

163377906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 513825.

The product of its (nonzero) digits is 142884, while the sum is 42.

The square root of 163377906 is about 12781.9367077137. The cubic root of 163377906 is about 546.6773851920.

The spelling of 163377906 in words is "one hundred sixty-three million, three hundred seventy-seven thousand, nine hundred six".