165575472 has 80 divisors (see below), whose sum is σ = 438492768. Its totient is φ = 53821440.

The previous prime is 165575453. The next prime is 165575477. The reversal of 165575472 is 274575561.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (165575477) 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, 564958 + ... + 565250.

Almost surely, 2^165575472 is an apocalyptic number.

165575472 is a gapful number since it is divisible by the number (12) 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 165575472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (219246384).

165575472 is an abundant number, since it is smaller than the sum of its proper divisors (272917296).

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

165575472 is a wasteful number, since it uses less digits than its factorization.

165575472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 558 (or 552 counting only the distinct ones).

The product of its digits is 294000, while the sum is 42.

The square root of 165575472 is about 12867.6132985103. The cubic root of 165575472 is about 549.1175623564.

The spelling of 165575472 in words is "one hundred sixty-five million, five hundred seventy-five thousand, four hundred seventy-two".