166351660 has 24 divisors (see below), whose sum is σ = 352010736. Its totient is φ = 66031680.

The previous prime is 166351609. The next prime is 166351693. The reversal of 166351660 is 66153661.

166351660 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 29127 + ... + 34366.

It is an arithmetic number, because the mean of its divisors is an integer number (14667114).

Almost surely, 2^166351660 is an apocalyptic number.

166351660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

166351660 is an abundant number, since it is smaller than the sum of its proper divisors (185659076).

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

166351660 is a wasteful number, since it uses less digits than its factorization.

166351660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63633 (or 63631 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 34.

The square root of 166351660 is about 12897.7385614688. The cubic root of 166351660 is about 549.9742797890.

The spelling of 166351660 in words is "one hundred sixty-six million, three hundred fifty-one thousand, six hundred sixty".