665002315600 has 120 divisors (see below), whose sum is σ = 1884806809088. Its totient is φ = 220645900800.

The previous prime is 665002315577. The next prime is 665002315697. The reversal of 665002315600 is 6513200566.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3743859 + ... + 3917458.

Almost surely, 2^665002315600 is an apocalyptic number.

It is an amenable number.

665002315600 is an abundant number, since it is smaller than the sum of its proper divisors (1219804493488).

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

665002315600 is a wasteful number, since it uses less digits than its factorization.

665002315600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7661373 (or 7661362 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 34.

The spelling of 665002315600 in words is "six hundred sixty-five billion, two million, three hundred fifteen thousand, six hundred".