165267966 has 48 divisors (see below), whose sum is σ = 357548688. Its totient is φ = 50889600.

The previous prime is 165267961. The next prime is 165267967. The reversal of 165267966 is 669762561.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165267961) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 87876 + ... + 89736.

It is an arithmetic number, because the mean of its divisors is an integer number (7448931).

Almost surely, 2^165267966 is an apocalyptic number.

165267966 is an abundant number, since it is smaller than the sum of its proper divisors (192280722).

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

165267966 is a wasteful number, since it uses less digits than its factorization.

165267966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1945 (or 1926 counting only the distinct ones).

The product of its digits is 816480, while the sum is 48.

The square root of 165267966 is about 12855.6589096009. The cubic root of 165267966 is about 548.7774121628. Note that the first 3 decimals are identical.

The spelling of 165267966 in words is "one hundred sixty-five million, two hundred sixty-seven thousand, nine hundred sixty-six".