161872882 has 8 divisors (see below), whose sum is σ = 244081152. Its totient is φ = 80512500.

The previous prime is 161872877. The next prime is 161872897. The reversal of 161872882 is 288278161.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 211494 + ... + 212257.

It is an arithmetic number, because the mean of its divisors is an integer number (30510144).

Almost surely, 2^161872882 is an apocalyptic number.

161872882 is a deficient number, since it is larger than the sum of its proper divisors (82208270).

161872882 is a wasteful number, since it uses less digits than its factorization.

161872882 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 423944.

The product of its digits is 86016, while the sum is 43.

The square root of 161872882 is about 12722.9274147108. The cubic root of 161872882 is about 544.9935548995.

The spelling of 161872882 in words is "one hundred sixty-one million, eight hundred seventy-two thousand, eight hundred eighty-two".