166560668 has 12 divisors (see below), whose sum is σ = 297683232. Its totient is φ = 81508320.

The previous prime is 166560661. The next prime is 166560673. The reversal of 166560668 is 866065661.

It is a super-2 number, since 2×166560668² = 55484912249212448, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166560661) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 442793 + ... + 443168.

It is an arithmetic number, because the mean of its divisors is an integer number (24806936).

Almost surely, 2^166560668 is an apocalyptic number.

It is an amenable number.

166560668 is a deficient number, since it is larger than the sum of its proper divisors (131122564).

166560668 is a wasteful number, since it uses less digits than its factorization.

166560668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 886012 (or 886010 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 44.

The square root of 166560668 is about 12905.8385237070. The cubic root of 166560668 is about 550.2045167787.

The spelling of 166560668 in words is "one hundred sixty-six million, five hundred sixty thousand, six hundred sixty-eight".