166671560 has 64 divisors (see below), whose sum is σ = 419126400. Its totient is φ = 59123200.

The previous prime is 166671559. The next prime is 166671563. The reversal of 166671560 is 65176661.

It is not an unprimeable number, because it can be changed into a prime (166671563) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13421 + ... + 22659.

It is an arithmetic number, because the mean of its divisors is an integer number (6548850).

Almost surely, 2^166671560 is an apocalyptic number.

166671560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 166671560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (209563200).

166671560 is an abundant number, since it is smaller than the sum of its proper divisors (252454840).

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

166671560 is a wasteful number, since it uses less digits than its factorization.

166671560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9302 (or 9298 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 38.

The square root of 166671560 is about 12910.1340039521. The cubic root of 166671560 is about 550.3265939066.

The spelling of 166671560 in words is "one hundred sixty-six million, six hundred seventy-one thousand, five hundred sixty".