166161066 has 8 divisors (see below), whose sum is σ = 332322144. Its totient is φ = 55387020.

The previous prime is 166161019. The next prime is 166161089. The reversal of 166161066 is 660161661.

It is a sphenic number, since it is the product of 3 distinct primes.

166161066 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13846750 + ... + 13846761.

It is an arithmetic number, because the mean of its divisors is an integer number (41540268).

Almost surely, 2^166161066 is an apocalyptic number.

166161066 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

166161066 is a wasteful number, since it uses less digits than its factorization.

166161066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27693516.

The product of its (nonzero) digits is 7776, while the sum is 33.

The square root of 166161066 is about 12890.3477842919. The cubic root of 166161066 is about 549.7641589405.

The spelling of 166161066 in words is "one hundred sixty-six million, one hundred sixty-one thousand, sixty-six".