165887260 has 48 divisors (see below), whose sum is σ = 434327040. Its totient is φ = 51704640.

The previous prime is 165887257. The next prime is 165887261. The reversal of 165887260 is 62788561.

It is a Smith number, since the sum of its digits (43) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165887261) 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, 52320 + ... + 55399.

It is an arithmetic number, because the mean of its divisors is an integer number (9048480).

Almost surely, 2^165887260 is an apocalyptic number.

165887260 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

165887260 is an abundant number, since it is smaller than the sum of its proper divisors (268439780).

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

165887260 is a wasteful number, since it uses less digits than its factorization.

165887260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107746 (or 107744 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 43.

The square root of 165887260 is about 12879.7228231045. The cubic root of 165887260 is about 549.4620194023.

The spelling of 165887260 in words is "one hundred sixty-five million, eight hundred eighty-seven thousand, two hundred sixty".