165374560 has 96 divisors (see below), whose sum is σ = 430768800. Its totient is φ = 59641344.

The previous prime is 165374557. The next prime is 165374563. The reversal of 165374560 is 65473561.

165374560 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (165374557) and next prime (165374563).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165374563) 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, 3845899 + ... + 3845941.

It is an arithmetic number, because the mean of its divisors is an integer number (4487175).

Almost surely, 2^165374560 is an apocalyptic number.

165374560 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 165374560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (215384400).

165374560 is an abundant number, since it is smaller than the sum of its proper divisors (265394240).

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

165374560 is an frugal number, since it uses more digits than its factorization.

165374560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157 (or 63 counting only the distinct ones).

The product of its (nonzero) digits is 75600, while the sum is 37.

The square root of 165374560 is about 12859.8040420529. The cubic root of 165374560 is about 548.8953697020.

Subtracting from 165374560 its reverse (65473561), we obtain a palindrome (99900999).

The spelling of 165374560 in words is "one hundred sixty-five million, three hundred seventy-four thousand, five hundred sixty".