166051056 has 40 divisors (see below), whose sum is σ = 434850640. Its totient is φ = 54590976.

The previous prime is 166051043. The next prime is 166051057. The reversal of 166051056 is 650150661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166051057) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20191 + ... + 27198.

It is an arithmetic number, because the mean of its divisors is an integer number (10871266).

Almost surely, 2^166051056 is an apocalyptic number.

166051056 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

166051056 is an abundant number, since it is smaller than the sum of its proper divisors (268799584).

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

166051056 is a wasteful number, since it uses less digits than its factorization.

166051056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47473 (or 47467 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 30.

The square root of 166051056 is about 12886.0799314609. The cubic root of 166051056 is about 549.6428049861.

The spelling of 166051056 in words is "one hundred sixty-six million, fifty-one thousand, fifty-six".