166802165 has 8 divisors (see below), whose sum is σ = 206619648. Its totient is φ = 129137040.

The previous prime is 166802161. The next prime is 166802173. The reversal of 166802165 is 561208661.

It is a happy number.

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

It is not a de Polignac number, because 166802165 - 2² = 166802161 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 (166802161) 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, 537917 + ... + 538226.

It is an arithmetic number, because the mean of its divisors is an integer number (25827456).

Almost surely, 2^166802165 is an apocalyptic number.

It is an amenable number.

166802165 is a deficient number, since it is larger than the sum of its proper divisors (39817483).

166802165 is a wasteful number, since it uses less digits than its factorization.

166802165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1076179.

The product of its (nonzero) digits is 17280, while the sum is 35.

The square root of 166802165 is about 12915.1912490679. The cubic root of 166802165 is about 550.4703029652.

The spelling of 166802165 in words is "one hundred sixty-six million, eight hundred two thousand, one hundred sixty-five".