165015330 has 32 divisors (see below), whose sum is σ = 402753600. Its totient is φ = 43257792.

The previous prime is 165015287. The next prime is 165015337. The reversal of 165015330 is 33510561.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 165015330.

It is not an unprimeable number, because it can be changed into a prime (165015337) 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, 44845 + ... + 48384.

It is an arithmetic number, because the mean of its divisors is an integer number (12586050).

Almost surely, 2^165015330 is an apocalyptic number.

165015330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

165015330 is an abundant number, since it is smaller than the sum of its proper divisors (237738270).

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

165015330 is a wasteful number, since it uses less digits than its factorization.

165015330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93298.

The product of its (nonzero) digits is 1350, while the sum is 24.

The square root of 165015330 is about 12845.8292842463. The cubic root of 165015330 is about 548.4976409969.

Adding to 165015330 its reverse (33510561), we get a palindrome (198525891).

The spelling of 165015330 in words is "one hundred sixty-five million, fifteen thousand, three hundred thirty".