6199779916 has 72 divisors (see below), whose sum is σ = 12150525744. Its totient is φ = 2744893440.

The previous prime is 6199779871. The next prime is 6199779923.

It is a happy number.

6199779916 is nontrivially palindromic in base 10.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 32123116 + ... + 32123308.

It is an arithmetic number, because the mean of its divisors is an integer number (168757302).

Almost surely, 2^6199779916 is an apocalyptic number.

It is an amenable number.

6199779916 is a deficient number, since it is larger than the sum of its proper divisors (5950745828).

6199779916 is a wasteful number, since it uses less digits than its factorization.

6199779916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 491 (or 416 counting only the distinct ones).

The product of its digits is 11573604, while the sum is 64.

The square root of 6199779916 is about 78738.6811929181. The cubic root of 6199779916 is about 1837.0688124325.

The spelling of 6199779916 in words is "six billion, one hundred ninety-nine million, seven hundred seventy-nine thousand, nine hundred sixteen".