6916558864 has 10 divisors (see below), whose sum is σ = 13400832830. Its totient is φ = 3458279424.

The previous prime is 6916558861. The next prime is 6916558867. The reversal of 6916558864 is 4688556196.

It is an interprime number because it is at equal distance from previous prime (6916558861) and next prime (6916558867).

It can be written as a sum of positive squares in only one way, i.e., 6441667600 + 474891264 = 80260^2 + 21792^2 .

It is a junction number, because it is equal to n+sod(n) for n = 6916558799 and 6916558808.

It is not an unprimeable number, because it can be changed into a prime (6916558861) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 216142449 + ... + 216142480.

It is an arithmetic number, because the mean of its divisors is an integer number (1340083283).

Almost surely, 2^6916558864 is an apocalyptic number.

It is an amenable number.

6916558864 is a deficient number, since it is larger than the sum of its proper divisors (6484273966).

6916558864 is a wasteful number, since it uses less digits than its factorization.

6916558864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 432284937 (or 432284931 counting only the distinct ones).

The product of its digits is 12441600, while the sum is 58.

The square root of 6916558864 is about 83165.8515497797. The cubic root of 6916558864 is about 1905.2999634657.

The spelling of 6916558864 in words is "six billion, nine hundred sixteen million, five hundred fifty-eight thousand, eight hundred sixty-four".