165712480 has 48 divisors (see below), whose sum is σ = 393014160. Its totient is φ = 66028032.

The previous prime is 165712457. The next prime is 165712487. The reversal of 165712480 is 84217561.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165712487) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42451 + ... + 46189.

It is an arithmetic number, because the mean of its divisors is an integer number (8187795).

Almost surely, 2^165712480 is an apocalyptic number.

165712480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 165712480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (196507080).

165712480 is an abundant number, since it is smaller than the sum of its proper divisors (227301680).

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

165712480 is a wasteful number, since it uses less digits than its factorization.

165712480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4031 (or 4023 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 34.

The square root of 165712480 is about 12872.9359510564. The cubic root of 165712480 is about 549.2689792230.

The spelling of 165712480 in words is "one hundred sixty-five million, seven hundred twelve thousand, four hundred eighty".