6615445166 has 16 divisors (see below), whose sum is σ = 11077026048. Its totient is φ = 2937089400.

The previous prime is 6615445117. The next prime is 6615445247.

6615445166 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×6615445166² = 87528229488705535112, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 3495590 + ... + 3497481.

It is an arithmetic number, because the mean of its divisors is an integer number (692314128).

Almost surely, 2^6615445166 is an apocalyptic number.

6615445166 is a deficient number, since it is larger than the sum of its proper divisors (4461580882).

6615445166 is a wasteful number, since it uses less digits than its factorization.

6615445166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6993127.

The product of its digits is 518400, while the sum is 44.

The square root of 6615445166 is about 81335.3869235279. The cubic root of 6615445166 is about 1877.2395323308.

The spelling of 6615445166 in words is "six billion, six hundred fifteen million, four hundred forty-five thousand, one hundred sixty-six".