166517005 has 8 divisors (see below), whose sum is σ = 204072192. Its totient is φ = 130379088.

The previous prime is 166517003. The next prime is 166517009. The reversal of 166517005 is 500715661.

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

It is a cyclic number.

It is not a de Polignac number, because 166517005 - 2¹ = 166517003 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166517003) 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, 354057 + ... + 354526.

It is an arithmetic number, because the mean of its divisors is an integer number (25509024).

Almost surely, 2^166517005 is an apocalyptic number.

It is an amenable number.

166517005 is a deficient number, since it is larger than the sum of its proper divisors (37555187).

166517005 is an equidigital number, since it uses as much as digits as its factorization.

166517005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 708635.

The product of its (nonzero) digits is 6300, while the sum is 31.

The square root of 166517005 is about 12904.1468141059. The cubic root of 166517005 is about 550.1564348403.

The spelling of 166517005 in words is "one hundred sixty-six million, five hundred seventeen thousand, five".