166679856 has 200 divisors, whose sum is σ = 580954880. Its totient is φ = 45069696.

The previous prime is 166679831. The next prime is 166679869. The reversal of 166679856 is 658976661.

166679856 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 171885 + ... + 172851.

Almost surely, 2^166679856 is an apocalyptic number.

166679856 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 166679856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (290477440).

166679856 is an abundant number, since it is smaller than the sum of its proper divisors (414275024).

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

166679856 is a wasteful number, since it uses less digits than its factorization.

166679856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1013 (or 998 counting only the distinct ones).

The product of its digits is 3265920, while the sum is 54.

The square root of 166679856 is about 12910.4552979359. The cubic root of 166679856 is about 550.3357245059.

The spelling of 166679856 in words is "one hundred sixty-six million, six hundred seventy-nine thousand, eight hundred fifty-six".