5216666623 has 8 divisors (see below), whose sum is σ = 5986851840. Its totient is φ = 4452718200.

The previous prime is 5216666579. The next prime is 5216666641. The reversal of 5216666623 is 3266666125.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 5216666623 - 2¹³ = 5216658431 is a prime.

It is a super-2 number, since 2×5216666623² = 54427221311044448258, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 5216666623.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5216666023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1557403 + ... + 1560748.

It is an arithmetic number, because the mean of its divisors is an integer number (748356480).

Almost surely, 2^5216666623 is an apocalyptic number.

5216666623 is a deficient number, since it is larger than the sum of its proper divisors (770185217).

5216666623 is a wasteful number, since it uses less digits than its factorization.

5216666623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3118397.

The product of its digits is 466560, while the sum is 43.

The square root of 5216666623 is about 72226.4952977784. The cubic root of 5216666623 is about 1734.3271701175.

The spelling of 5216666623 in words is "five billion, two hundred sixteen million, six hundred sixty-six thousand, six hundred twenty-three".