665017010200 has 48 divisors (see below), whose sum is σ = 1571511537360. Its totient is φ = 261646032000.

The previous prime is 665017010167. The next prime is 665017010201. The reversal of 665017010200 is 2010710566.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (665017010201) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 27242596 + ... + 27266995.

It is an arithmetic number, because the mean of its divisors is an integer number (32739823695).

Almost surely, 2^665017010200 is an apocalyptic number.

It is an amenable number.

665017010200 is an abundant number, since it is smaller than the sum of its proper divisors (906494527160).

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

665017010200 is a wasteful number, since it uses less digits than its factorization.

665017010200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54509668 (or 54509659 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 28.

Adding to 665017010200 its reverse (2010710566), we get a palindrome (667027720766).

The spelling of 665017010200 in words is "six hundred sixty-five billion, seventeen million, ten thousand, two hundred".