640963303716 has 48 divisors (see below), whose sum is σ = 1583623137600. Its totient is φ = 201078051840.

The previous prime is 640963303703. The next prime is 640963303727. The reversal of 640963303716 is 617303369046.

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 15 ways as a sum of consecutive naturals, for example, 6267360 + ... + 6368808.

It is an arithmetic number, because the mean of its divisors is an integer number (32992148700).

Almost surely, 2^640963303716 is an apocalyptic number.

It is an amenable number.

640963303716 is an abundant number, since it is smaller than the sum of its proper divisors (942659833884).

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

640963303716 is a wasteful number, since it uses less digits than its factorization.

640963303716 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132444 (or 132442 counting only the distinct ones).

The product of its (nonzero) digits is 1469664, while the sum is 48.

The spelling of 640963303716 in words is "six hundred forty billion, nine hundred sixty-three million, three hundred three thousand, seven hundred sixteen".