8016065399 has 4 divisors (see below), whose sum is σ = 8035197240. Its totient is φ = 7996933560.

The previous prime is 8016065347. The next prime is 8016065411. The reversal of 8016065399 is 9935606108.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 8016065399 - 2²⁴ = 7999288183 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8016065899) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9565292 + ... + 9566129.

It is an arithmetic number, because the mean of its divisors is an integer number (2008799310).

Almost surely, 2^8016065399 is an apocalyptic number.

8016065399 is a deficient number, since it is larger than the sum of its proper divisors (19131841).

8016065399 is a wasteful number, since it uses less digits than its factorization.

8016065399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19131840.

The product of its (nonzero) digits is 349920, while the sum is 47.

The square root of 8016065399 is about 89532.4823681327. The cubic root of 8016065399 is about 2001.3378880782.

The spelling of 8016065399 in words is "eight billion, sixteen million, sixty-five thousand, three hundred ninety-nine".