166672256 has 48 divisors (see below), whose sum is σ = 350535240. Its totient is φ = 78928128.

The previous prime is 166672243. The next prime is 166672277. The reversal of 166672256 is 652276661.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 44405 + ... + 48011.

Almost surely, 2^166672256 is an apocalyptic number.

166672256 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 166672256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (175267620).

166672256 is an abundant number, since it is smaller than the sum of its proper divisors (183862984).

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

166672256 is an equidigital number, since it uses as much as digits as its factorization.

166672256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3659 (or 3628 counting only the distinct ones).

The product of its digits is 181440, while the sum is 41.

The square root of 166672256 is about 12910.1609594923. The cubic root of 166672256 is about 550.3273599377.

The spelling of 166672256 in words is "one hundred sixty-six million, six hundred seventy-two thousand, two hundred fifty-six".