166560560 has 40 divisors (see below), whose sum is σ = 410036256. Its totient is φ = 62704640.

The previous prime is 166560557. The next prime is 166560571. The reversal of 166560560 is 65065661.

It is a tau number, because it is divible by the number of its divisors (40).

It is a self number, because there is not a number n which added to its sum of digits gives 166560560.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59876 + ... + 62595.

Almost surely, 2^166560560 is an apocalyptic number.

166560560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

166560560 is an abundant number, since it is smaller than the sum of its proper divisors (243475696).

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

166560560 is a wasteful number, since it uses less digits than its factorization.

166560560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122501 (or 122495 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 35.

The square root of 166560560 is about 12905.8343395536. The cubic root of 166560560 is about 550.2043978589.

The spelling of 166560560 in words is "one hundred sixty-six million, five hundred sixty thousand, five hundred sixty".