162381666 has 16 divisors (see below), whose sum is σ = 324998784. Its totient is φ = 54087984.

The previous prime is 162381623. The next prime is 162381677. The reversal of 162381666 is 666183261.

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, 106 + ... + 18021.

It is an arithmetic number, because the mean of its divisors is an integer number (20312424).

Almost surely, 2^162381666 is an apocalyptic number.

162381666 is an abundant number, since it is smaller than the sum of its proper divisors (162617118).

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

162381666 is a wasteful number, since it uses less digits than its factorization.

162381666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19625.

The product of its digits is 62208, while the sum is 39.

The square root of 162381666 is about 12742.9064973420. The cubic root of 162381666 is about 545.5639489693.

The spelling of 162381666 in words is "one hundred sixty-two million, three hundred eighty-one thousand, six hundred sixty-six".