6616028289 has 16 divisors (see below), whose sum is σ = 9720869312. Its totient is φ = 3976717248.

The previous prime is 6616028267. The next prime is 6616028291. The reversal of 6616028289 is 9828206166.

It is a happy number.

It is not a de Polignac number, because 6616028289 - 2⁷ = 6616028161 is a prime.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6616021289) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1970902 + ... + 1974255.

It is an arithmetic number, because the mean of its divisors is an integer number (607554332).

Almost surely, 2^6616028289 is an apocalyptic number.

It is an amenable number.

6616028289 is a deficient number, since it is larger than the sum of its proper divisors (3104841023).

6616028289 is a wasteful number, since it uses less digits than its factorization.

6616028289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3945216.

The product of its (nonzero) digits is 497664, while the sum is 48.

The square root of 6616028289 is about 81338.9715265690. The cubic root of 6616028289 is about 1877.2946875703.

It can be divided in two parts, 66160 and 28289, that added together give a palindrome (94449).

The spelling of 6616028289 in words is "six billion, six hundred sixteen million, twenty-eight thousand, two hundred eighty-nine".