6416920768 has 56 divisors (see below), whose sum is σ = 13506419520. Its totient is φ = 3016316160.

The previous prime is 6416920747. The next prime is 6416920789. The reversal of 6416920768 is 8670296146.

It is an interprime number because it is at equal distance from previous prime (6416920747) and next prime (6416920789).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 139155 + ... + 179437.

Almost surely, 2^6416920768 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 6416920768, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6753209760).

6416920768 is an abundant number, since it is smaller than the sum of its proper divisors (7089498752).

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

6416920768 is a wasteful number, since it uses less digits than its factorization.

6416920768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40445 (or 40435 counting only the distinct ones).

The product of its (nonzero) digits is 870912, while the sum is 49.

The square root of 6416920768 is about 80105.6849917657. The cubic root of 6416920768 is about 1858.2703278917.

The spelling of 6416920768 in words is "six billion, four hundred sixteen million, nine hundred twenty thousand, seven hundred sixty-eight".