166170956 has 36 divisors (see below), whose sum is σ = 343069776. Its totient is φ = 70207200.

The previous prime is 166170931. The next prime is 166170997. The reversal of 166170956 is 659071661.

166170956 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×166170956² = 55225573235907872, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7946 + ... + 19886.

It is an arithmetic number, because the mean of its divisors is an integer number (9529716).

Almost surely, 2^166170956 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 166170956, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (171534888).

166170956 is an abundant number, since it is smaller than the sum of its proper divisors (176898820).

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

166170956 is a wasteful number, since it uses less digits than its factorization.

166170956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12030 (or 12021 counting only the distinct ones).

The product of its (nonzero) digits is 68040, while the sum is 41.

The square root of 166170956 is about 12890.7313989548. The cubic root of 166170956 is about 549.7750661479.

The spelling of 166170956 in words is "one hundred sixty-six million, one hundred seventy thousand, nine hundred fifty-six".