6515655166 has 8 divisors (see below), whose sum is σ = 9773919144. Its totient is φ = 3257682120.

The previous prime is 6515655149. The next prime is 6515655169. The reversal of 6515655166 is 6615565156.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6515655169) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3600 + ... + 114211.

It is an arithmetic number, because the mean of its divisors is an integer number (1221739893).

Almost surely, 2^6515655166 is an apocalyptic number.

6515655166 is a deficient number, since it is larger than the sum of its proper divisors (3258263978).

6515655166 is a wasteful number, since it uses less digits than its factorization.

6515655166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145466.

The product of its digits is 810000, while the sum is 46.

The square root of 6515655166 is about 80719.6083117355. The cubic root of 6515655166 is about 1867.7526612971.

The spelling of 6515655166 in words is "six billion, five hundred fifteen million, six hundred fifty-five thousand, one hundred sixty-six".