646795007232 has 216 divisors, whose sum is σ = 1940466739680. Its totient is φ = 189673574400.

The previous prime is 646795007203. The next prime is 646795007321. The reversal of 646795007232 is 232700597646.

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, 8078694 + ... + 8158362.

Almost surely, 2^646795007232 is an apocalyptic number.

646795007232 is a gapful number since it is divisible by the number (62) 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 646795007232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (970233369840).

646795007232 is an abundant number, since it is smaller than the sum of its proper divisors (1293671732448).

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

646795007232 is a wasteful number, since it uses less digits than its factorization.

646795007232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79761 (or 79716 counting only the distinct ones).

The product of its (nonzero) digits is 3810240, while the sum is 51.

The spelling of 646795007232 in words is "six hundred forty-six billion, seven hundred ninety-five million, seven thousand, two hundred thirty-two".