166343056 has 80 divisors (see below), whose sum is σ = 362708928. Its totient is φ = 73877760.

The previous prime is 166343041. The next prime is 166343063. The reversal of 166343056 is 650343661.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1554555 + ... + 1554661.

Almost surely, 2^166343056 is an apocalyptic number.

166343056 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 166343056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (181354464).

166343056 is an abundant number, since it is smaller than the sum of its proper divisors (196365872).

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

166343056 is a wasteful number, since it uses less digits than its factorization.

166343056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221 (or 193 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 34.

The square root of 166343056 is about 12897.4050103112. The cubic root of 166343056 is about 549.9647977470.

The spelling of 166343056 in words is "one hundred sixty-six million, three hundred forty-three thousand, fifty-six".