6178879966 has 16 divisors (see below), whose sum is σ = 10631748960. Its totient is φ = 2638245600.

The previous prime is 6178879939. The next prime is 6178879997. The reversal of 6178879966 is 6699788716.

It is a super-2 number, since 2×6178879966² = 76357115268472322312, which contains 22 as substring.

It is a congruent number.

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, 816585 + ... + 824116.

It is an arithmetic number, because the mean of its divisors is an integer number (664484310).

Almost surely, 2^6178879966 is an apocalyptic number.

6178879966 is a deficient number, since it is larger than the sum of its proper divisors (4452868994).

6178879966 is a wasteful number, since it uses less digits than its factorization.

6178879966 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1640979.

The product of its digits is 54867456, while the sum is 67.

The square root of 6178879966 is about 78605.8519831698. The cubic root of 6178879966 is about 1835.0021868624.

The spelling of 6178879966 in words is "six billion, one hundred seventy-eight million, eight hundred seventy-nine thousand, nine hundred sixty-six".