165332840 has 32 divisors (see below), whose sum is σ = 379918080. Its totient is φ = 64725312.

The previous prime is 165332789. The next prime is 165332863. The reversal of 165332840 is 48233561.

It is a junction number, because it is equal to n+sod(n) for n = 165332797 and 165332806.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42092 + ... + 45851.

It is an arithmetic number, because the mean of its divisors is an integer number (11872440).

Almost surely, 2^165332840 is an apocalyptic number.

165332840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

165332840 is an abundant number, since it is smaller than the sum of its proper divisors (214585240).

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

165332840 is a wasteful number, since it uses less digits than its factorization.

165332840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88001 (or 87997 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 32.

The square root of 165332840 is about 12858.1818310366. The cubic root of 165332840 is about 548.8492081464.

The spelling of 165332840 in words is "one hundred sixty-five million, three hundred thirty-two thousand, eight hundred forty".