5816999121 has 8 divisors (see below), whose sum is σ = 7756353120. Its totient is φ = 3877822272.

The previous prime is 5816999117. The next prime is 5816999129. The reversal of 5816999121 is 1219996185.

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

It is not a de Polignac number, because 5816999121 - 2² = 5816999117 is a prime.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (5816999129) by changing a digit.

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, 94206 + ... + 143208.

It is an arithmetic number, because the mean of its divisors is an integer number (969544140).

Almost surely, 2^5816999121 is an apocalyptic number.

It is an amenable number.

5816999121 is a deficient number, since it is larger than the sum of its proper divisors (1939353999).

5816999121 is a wasteful number, since it uses less digits than its factorization.

5816999121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88575.

The product of its digits is 349920, while the sum is 51.

The square root of 5816999121 is about 76269.2541001943. The cubic root of 5816999121 is about 1798.4553745885.

The spelling of 5816999121 in words is "five billion, eight hundred sixteen million, nine hundred ninety-nine thousand, one hundred twenty-one".