165146663 has 8 divisors (see below), whose sum is σ = 181814160. Its totient is φ = 148754880.

The previous prime is 165146629. The next prime is 165146711. The reversal of 165146663 is 366641561.

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 165146663 - 2⁸ = 165146407 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165146623) 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, 67670 + ... + 70067.

It is an arithmetic number, because the mean of its divisors is an integer number (22726770).

Almost surely, 2^165146663 is an apocalyptic number.

165146663 is a deficient number, since it is larger than the sum of its proper divisors (16667497).

165146663 is a wasteful number, since it uses less digits than its factorization.

165146663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137857.

The product of its digits is 77760, while the sum is 38.

The square root of 165146663 is about 12850.9401601595. The cubic root of 165146663 is about 548.6431158414.

The spelling of 165146663 in words is "one hundred sixty-five million, one hundred forty-six thousand, six hundred sixty-three".