16247707864 has 16 divisors (see below), whose sum is σ = 31112632800. Its totient is φ = 7951005792.

The previous prime is 16247707841. The next prime is 16247707867. The reversal of 16247707864 is 46870774261.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16247707867) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21605619 + ... + 21606370.

It is an arithmetic number, because the mean of its divisors is an integer number (1944539550).

Almost surely, 2^16247707864 is an apocalyptic number.

It is an amenable number.

16247707864 is a deficient number, since it is larger than the sum of its proper divisors (14864924936).

16247707864 is a wasteful number, since it uses less digits than its factorization.

16247707864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43212042 (or 43212038 counting only the distinct ones).

The product of its (nonzero) digits is 3161088, while the sum is 52.

The spelling of 16247707864 in words is "sixteen billion, two hundred forty-seven million, seven hundred seven thousand, eight hundred sixty-four".