166460816 has 40 divisors (see below), whose sum is σ = 328833120. Its totient is φ = 81616896.

The previous prime is 166460809. The next prime is 166460857. The reversal of 166460816 is 618064661.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 166460816.

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, 216080 + ... + 216848.

It is an arithmetic number, because the mean of its divisors is an integer number (8220828).

Almost surely, 2^166460816 is an apocalyptic number.

166460816 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

166460816 is a deficient number, since it is larger than the sum of its proper divisors (162372304).

166460816 is a wasteful number, since it uses less digits than its factorization.

166460816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1023 (or 1017 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 38.

The square root of 166460816 is about 12901.9694620628. The cubic root of 166460816 is about 550.0945468316.

The spelling of 166460816 in words is "one hundred sixty-six million, four hundred sixty thousand, eight hundred sixteen".