6616116165 has 8 divisors (see below), whose sum is σ = 10585785888. Its totient is φ = 3528595280.

The previous prime is 6616116121. The next prime is 6616116191. The reversal of 6616116165 is 5616116166.

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

It is not a de Polignac number, because 6616116165 - 2¹⁰ = 6616115141 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 220537191 + ... + 220537220.

It is an arithmetic number, because the mean of its divisors is an integer number (1323223236).

Almost surely, 2^6616116165 is an apocalyptic number.

It is an amenable number.

6616116165 is a deficient number, since it is larger than the sum of its proper divisors (3969669723).

6616116165 is a wasteful number, since it uses less digits than its factorization.

6616116165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 441074419.

The product of its digits is 38880, while the sum is 39.

The square root of 6616116165 is about 81339.5117086401. The cubic root of 6616116165 is about 1877.3029991237.

Subtracting from 6616116165 its reverse (5616116166), we obtain a palindrome (999999999).

The spelling of 6616116165 in words is "six billion, six hundred sixteen million, one hundred sixteen thousand, one hundred sixty-five".