650864716320 has 384 divisors, whose sum is σ = 2525393203200. Its totient is φ = 137214259200.

The previous prime is 650864716309. The next prime is 650864716399. The reversal of 650864716320 is 23617468056.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a self number, because there is not a number n which added to its sum of digits gives 650864716320.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 61102995 + ... + 61113645.

It is an arithmetic number, because the mean of its divisors is an integer number (6576544800).

Almost surely, 2^650864716320 is an apocalyptic number.

650864716320 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 650864716320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1262696601600).

650864716320 is an abundant number, since it is smaller than the sum of its proper divisors (1874528486880).

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

650864716320 is a wasteful number, since it uses less digits than its factorization.

650864716320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12088 (or 12080 counting only the distinct ones).

The product of its (nonzero) digits is 1451520, while the sum is 48.

The spelling of 650864716320 in words is "six hundred fifty billion, eight hundred sixty-four million, seven hundred sixteen thousand, three hundred twenty".