166704653376 has 84 divisors (see below), whose sum is σ = 478635552252. Its totient is φ = 55474397184.

The previous prime is 166704653363. The next prime is 166704653383. The reversal of 166704653376 is 673356407661.

It is a happy number.

166704653376 is a `hidden beast` number, since 1 + 6 + 67 + 0 + 46 + 533 + 7 + 6 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 83428545600 + 83276107776 = 288840^2 + 288576^2 .

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 97540 + ... + 585596.

Almost surely, 2^166704653376 is an apocalyptic number.

166704653376 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 166704653376, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (239317776126).

166704653376 is an abundant number, since it is smaller than the sum of its proper divisors (311930898876).

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

166704653376 is a wasteful number, since it uses less digits than its factorization.

166704653376 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 488668 (or 488655 counting only the distinct ones).

The product of its (nonzero) digits is 11430720, while the sum is 54.

The spelling of 166704653376 in words is "one hundred sixty-six billion, seven hundred four million, six hundred fifty-three thousand, three hundred seventy-six".