665214852 has 48 divisors (see below), whose sum is σ = 1661587200. Its totient is φ = 206503200.

The previous prime is 665214799. The next prime is 665214853. The reversal of 665214852 is 258412566.

It is a self number, because there is not a number n which added to its sum of digits gives 665214852.

It is not an unprimeable number, because it can be changed into a prime (665214853) 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, 11274 + ... + 38177.

It is an arithmetic number, because the mean of its divisors is an integer number (34616400).

Almost surely, 2^665214852 is an apocalyptic number.

It is an amenable number.

665214852 is an abundant number, since it is smaller than the sum of its proper divisors (996372348).

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

665214852 is a wasteful number, since it uses less digits than its factorization.

665214852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49536 (or 49534 counting only the distinct ones).

The product of its digits is 115200, while the sum is 39.

The square root of 665214852 is about 25791.7593816320. The cubic root of 665214852 is about 872.9458653872.

The spelling of 665214852 in words is "six hundred sixty-five million, two hundred fourteen thousand, eight hundred fifty-two".