646355767096 has 128 divisors (see below), whose sum is σ = 1402022260800. Its totient is φ = 276835553280.

The previous prime is 646355767051. The next prime is 646355767097. The reversal of 646355767096 is 690767553646.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (646355767097) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 69220540 + ... + 69229876.

Almost surely, 2^646355767096 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 646355767096, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (701011130400).

646355767096 is an abundant number, since it is smaller than the sum of its proper divisors (755666493704).

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

646355767096 is a wasteful number, since it uses less digits than its factorization.

646355767096 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10089 (or 10085 counting only the distinct ones).

The product of its (nonzero) digits is 171460800, while the sum is 64.

The spelling of 646355767096 in words is "six hundred forty-six billion, three hundred fifty-five million, seven hundred sixty-seven thousand, ninety-six".