166671683 has 8 divisors (see below), whose sum is σ = 170995776. Its totient is φ = 162360000.

The previous prime is 166671649. The next prime is 166671691. The reversal of 166671683 is 386176661.

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

It is not a de Polignac number, because 166671683 - 2¹⁸ = 166409539 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (166671623) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28085 + ... + 33497.

It is an arithmetic number, because the mean of its divisors is an integer number (21374472).

Almost surely, 2^166671683 is an apocalyptic number.

166671683 is a deficient number, since it is larger than the sum of its proper divisors (4324093).

166671683 is an equidigital number, since it uses as much as digits as its factorization.

166671683 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6205.

The product of its digits is 217728, while the sum is 44.

The square root of 166671683 is about 12910.1387676508. The cubic root of 166671683 is about 550.3267292830.

The spelling of 166671683 in words is "one hundred sixty-six million, six hundred seventy-one thousand, six hundred eighty-three".