165415260 has 48 divisors (see below), whose sum is σ = 463905792. Its totient is φ = 44040000.

The previous prime is 165415207. The next prime is 165415277. The reversal of 165415260 is 62514561.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43225 + ... + 46895.

It is an arithmetic number, because the mean of its divisors is an integer number (9664704).

Almost surely, 2^165415260 is an apocalyptic number.

165415260 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

165415260 is an abundant number, since it is smaller than the sum of its proper divisors (298490532).

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

165415260 is a wasteful number, since it uses less digits than its factorization.

165415260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4434 (or 4432 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 30.

The square root of 165415260 is about 12861.3863949420. The cubic root of 165415260 is about 548.9403951865.

The spelling of 165415260 in words is "one hundred sixty-five million, four hundred fifteen thousand, two hundred sixty".