6615775166 has 64 divisors (see below), whose sum is σ = 13340436480. Its totient is φ = 2376380160.

The previous prime is 6615775163. The next prime is 6615775169.

6615775166 is nontrivially palindromic in base 10.

It is an interprime number because it is at equal distance from previous prime (6615775163) and next prime (6615775169).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6615775163) 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 31 ways as a sum of consecutive naturals, for example, 2258795 + ... + 2261721.

It is an arithmetic number, because the mean of its divisors is an integer number (208444320).

Almost surely, 2^6615775166 is an apocalyptic number.

6615775166 is an abundant number, since it is smaller than the sum of its proper divisors (6724661314).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6615775166 is a wasteful number, since it uses less digits than its factorization.

6615775166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4089.

The product of its digits is 1587600, while the sum is 50.

The square root of 6615775166 is about 81337.4155355332. The cubic root of 6615775166 is about 1877.2707460904.

The spelling of 6615775166 in words is "six billion, six hundred fifteen million, seven hundred seventy-five thousand, one hundred sixty-six".