5991564617 has 16 divisors (see below), whose sum is σ = 6187145472. Its totient is φ = 5799505920.

The previous prime is 5991564613. The next prime is 5991564619. The reversal of 5991564617 is 7164651995.

It is not a de Polignac number, because 5991564617 - 2² = 5991564613 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (53).

It is not an unprimeable number, because it can be changed into a prime (5991564611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1455392 + ... + 1459502.

It is an arithmetic number, because the mean of its divisors is an integer number (386696592).

Almost surely, 2^5991564617 is an apocalyptic number.

It is an amenable number.

5991564617 is a deficient number, since it is larger than the sum of its proper divisors (195580855).

5991564617 is a wasteful number, since it uses less digits than its factorization.

5991564617 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4528.

The product of its digits is 2041200, while the sum is 53.

The square root of 5991564617 is about 77405.1976097213. The cubic root of 5991564617 is about 1816.2686318865.

The spelling of 5991564617 in words is "five billion, nine hundred ninety-one million, five hundred sixty-four thousand, six hundred seventeen".