166270165 has 8 divisors (see below), whose sum is σ = 201928608. Its totient is φ = 131413200.

The previous prime is 166270147. The next prime is 166270219. The reversal of 166270165 is 561072661.

It is a happy number.

166270165 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 166270165 - 2⁵ = 166270133 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 166270165.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 199911 + ... + 200740.

It is an arithmetic number, because the mean of its divisors is an integer number (25241076).

Almost surely, 2^166270165 is an apocalyptic number.

It is an amenable number.

166270165 is a deficient number, since it is larger than the sum of its proper divisors (35658443).

166270165 is an equidigital number, since it uses as much as digits as its factorization.

166270165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 400739.

The product of its (nonzero) digits is 15120, while the sum is 34.

The square root of 166270165 is about 12894.5788996772. The cubic root of 166270165 is about 549.8844550667.

The spelling of 166270165 in words is "one hundred sixty-six million, two hundred seventy thousand, one hundred sixty-five".