165343120 has 20 divisors (see below), whose sum is σ = 384422940. Its totient is φ = 66137216.

The previous prime is 165343117. The next prime is 165343147. The reversal of 165343120 is 21343561.

It can be written as a sum of positive squares in 2 ways, for example, as 93161104 + 72182016 = 9652^2 + 8496^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1033315 + ... + 1033474.

It is an arithmetic number, because the mean of its divisors is an integer number (19221147).

Almost surely, 2^165343120 is an apocalyptic number.

165343120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

165343120 is an abundant number, since it is smaller than the sum of its proper divisors (219079820).

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

165343120 is a wasteful number, since it uses less digits than its factorization.

165343120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2066802 (or 2066796 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 165343120 is about 12858.5815702977. The cubic root of 165343120 is about 548.8605832871.

Adding to 165343120 its reverse (21343561), we get a palindrome (186686681).

The spelling of 165343120 in words is "one hundred sixty-five million, three hundred forty-three thousand, one hundred twenty".