6166619979 has 16 divisors (see below), whose sum is σ = 8856556800. Its totient is φ = 3794018976.

The previous prime is 6166619971. The next prime is 6166619983. The reversal of 6166619979 is 9799166616.

It is not a de Polignac number, because 6166619979 - 2³ = 6166619971 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6166619971) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 199252 + ... + 228110.

It is an arithmetic number, because the mean of its divisors is an integer number (553534800).

Almost surely, 2^6166619979 is an apocalyptic number.

6166619979 is a deficient number, since it is larger than the sum of its proper divisors (2689936821).

6166619979 is a wasteful number, since it uses less digits than its factorization.

6166619979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34354.

The product of its digits is 6613488, while the sum is 60.

The square root of 6166619979 is about 78527.8293282070. The cubic root of 6166619979 is about 1833.7877273428.

It can be divided in two parts, 616661 and 9979, that added together give a triangular number (626640 = T₁₁₁₉).

The spelling of 6166619979 in words is "six billion, one hundred sixty-six million, six hundred nineteen thousand, nine hundred seventy-nine".