165023340 has 48 divisors (see below), whose sum is σ = 478003680. Its totient is φ = 42488320.

The previous prime is 165023329. The next prime is 165023347. The reversal of 165023340 is 43320561.

It is a happy number.

165023340 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 165023340.

It is not an unprimeable number, because it can be changed into a prime (165023347) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45681 + ... + 49160.

It is an arithmetic number, because the mean of its divisors is an integer number (9958410).

Almost surely, 2^165023340 is an apocalyptic number.

165023340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

165023340 is an abundant number, since it is smaller than the sum of its proper divisors (312980340).

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

165023340 is a wasteful number, since it uses less digits than its factorization.

165023340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94882 (or 94880 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 24.

The square root of 165023340 is about 12846.1410548071. The cubic root of 165023340 is about 548.5065157179.

The spelling of 165023340 in words is "one hundred sixty-five million, twenty-three thousand, three hundred forty".