6400016682 has 8 divisors (see below), whose sum is σ = 12800033376. Its totient is φ = 2133338892.

The previous prime is 6400016663. The next prime is 6400016683. The reversal of 6400016682 is 2866100046.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

6400016682 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (6400016683) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 533334718 + ... + 533334729.

It is an arithmetic number, because the mean of its divisors is an integer number (1600004172).

Almost surely, 2^6400016682 is an apocalyptic number.

6400016682 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

6400016682 is a wasteful number, since it uses less digits than its factorization.

6400016682 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1066669452.

The product of its (nonzero) digits is 13824, while the sum is 33.

The square root of 6400016682 is about 80000.1042624321. The cubic root of 6400016682 is about 1856.6371465892.

The spelling of 6400016682 in words is "six billion, four hundred million, sixteen thousand, six hundred eighty-two".