6626516243 has 8 divisors (see below), whose sum is σ = 6689295360. Its totient is φ = 6563773440.

The previous prime is 6626516231. The next prime is 6626516251. The reversal of 6626516243 is 3426156266.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 6626516243 - 2¹⁸ = 6626254099 is a prime.

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 6626516243.

It is not an unprimeable number, because it can be changed into a prime (6626516203) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 481646 + ... + 495212.

It is an arithmetic number, because the mean of its divisors is an integer number (836161920).

Almost surely, 2^6626516243 is an apocalyptic number.

6626516243 is a deficient number, since it is larger than the sum of its proper divisors (62779117).

6626516243 is a wasteful number, since it uses less digits than its factorization.

6626516243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18157.

The product of its digits is 311040, while the sum is 41.

The square root of 6626516243 is about 81403.4166543395. The cubic root of 6626516243 is about 1878.2861477404.

The spelling of 6626516243 in words is "six billion, six hundred twenty-six million, five hundred sixteen thousand, two hundred forty-three".