165143166 has 8 divisors (see below), whose sum is σ = 330286344. Its totient is φ = 55047720.

The previous prime is 165143137. The next prime is 165143221. The reversal of 165143166 is 661341561.

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

165143166 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13761925 + ... + 13761936.

It is an arithmetic number, because the mean of its divisors is an integer number (41285793).

Almost surely, 2^165143166 is an apocalyptic number.

165143166 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

165143166 is a wasteful number, since it uses less digits than its factorization.

165143166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27523866.

The product of its digits is 12960, while the sum is 33.

The square root of 165143166 is about 12850.8040993550. The cubic root of 165143166 is about 548.6392432866.

The spelling of 165143166 in words is "one hundred sixty-five million, one hundred forty-three thousand, one hundred sixty-six".