665043060 has 96 divisors (see below), whose sum is σ = 2150934912. Its totient is φ = 151736320.

The previous prime is 665043059. The next prime is 665043079. The reversal of 665043060 is 60340566.

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 polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18417 + ... + 40856.

It is an arithmetic number, because the mean of its divisors is an integer number (22405572).

Almost surely, 2^665043060 is an apocalyptic number.

665043060 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

665043060 is an abundant number, since it is smaller than the sum of its proper divisors (1485891852).

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

665043060 is a wasteful number, since it uses less digits than its factorization.

665043060 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59313 (or 59311 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 30.

The square root of 665043060 is about 25788.4288005299. The cubic root of 665043060 is about 872.8707127118.

The spelling of 665043060 in words is "six hundred sixty-five million, forty-three thousand, sixty".