5999816139 has 16 divisors (see below), whose sum is σ = 8215579680. Its totient is φ = 3892458240.

The previous prime is 5999816131. The next prime is 5999816159. The reversal of 5999816139 is 9316189995.

It is not a de Polignac number, because 5999816139 - 2³ = 5999816131 is a prime.

It is not an unprimeable number, because it can be changed into a prime (5999816131) 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, 12604 + ... + 110265.

It is an arithmetic number, because the mean of its divisors is an integer number (513473730).

Almost surely, 2^5999816139 is an apocalyptic number.

5999816139 is a deficient number, since it is larger than the sum of its proper divisors (2215763541).

5999816139 is a wasteful number, since it uses less digits than its factorization.

5999816139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123310.

The product of its digits is 4723920, while the sum is 60.

The square root of 5999816139 is about 77458.4800974044. The cubic root of 5999816139 is about 1817.1020316642.

The spelling of 5999816139 in words is "five billion, nine hundred ninety-nine million, eight hundred sixteen thousand, one hundred thirty-nine".