5199657664 has 14 divisors (see below), whose sum is σ = 10318070804. Its totient is φ = 2599828800.

The previous prime is 5199657649. The next prime is 5199657713. The reversal of 5199657664 is 4667569915.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 5199657599 and 5199657608.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 40622262 + ... + 40622389.

Almost surely, 2^5199657664 is an apocalyptic number.

It is an amenable number.

5199657664 is a deficient number, since it is larger than the sum of its proper divisors (5118413140).

5199657664 is an equidigital number, since it uses as much as digits as its factorization.

5199657664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81244663 (or 81244653 counting only the distinct ones).

The product of its digits is 12247200, while the sum is 58.

The square root of 5199657664 is about 72108.6517971318. The cubic root of 5199657664 is about 1732.4401912795.

The spelling of 5199657664 in words is "five billion, one hundred ninety-nine million, six hundred fifty-seven thousand, six hundred sixty-four".