166308128 has 48 divisors (see below), whose sum is σ = 379499904. Its totient is φ = 70264320.

The previous prime is 166308113. The next prime is 166308139. The reversal of 166308128 is 821803661.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10676 + ... + 21132.

It is an arithmetic number, because the mean of its divisors is an integer number (7906248).

Almost surely, 2^166308128 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 166308128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (189749952).

166308128 is an abundant number, since it is smaller than the sum of its proper divisors (213191776).

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

166308128 is a wasteful number, since it uses less digits than its factorization.

166308128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10545 (or 10537 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 35.

The square root of 166308128 is about 12896.0508683860. The cubic root of 166308128 is about 549.9263019709.

The spelling of 166308128 in words is "one hundred sixty-six million, three hundred eight thousand, one hundred twenty-eight".