165150645 has 32 divisors (see below), whose sum is σ = 292584960. Its totient is φ = 78872640.

The previous prime is 165150637. The next prime is 165150653. The reversal of 165150645 is 546051561.

It is an interprime number because it is at equal distance from previous prime (165150637) and next prime (165150653).

It is not a de Polignac number, because 165150645 - 2³ = 165150637 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3586 + ... + 18524.

It is an arithmetic number, because the mean of its divisors is an integer number (9143280).

Almost surely, 2^165150645 is an apocalyptic number.

165150645 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

165150645 is a deficient number, since it is larger than the sum of its proper divisors (127434315).

165150645 is a wasteful number, since it uses less digits than its factorization.

165150645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15025.

The product of its (nonzero) digits is 18000, while the sum is 33.

The square root of 165150645 is about 12851.0950895245. The cubic root of 165150645 is about 548.6475254155.

The spelling of 165150645 in words is "one hundred sixty-five million, one hundred fifty thousand, six hundred forty-five".