6011666566065 has 12 divisors (see below), whose sum is σ = 10420222047924. Its totient is φ = 3206222168544.

The previous prime is 6011666566043. The next prime is 6011666566069. The reversal of 6011666566065 is 5606656661106.

It can be written as a sum of positive squares in 2 ways, for example, as 1147246641216 + 4864419924849 = 1071096^2 + 2205543^2 .

It is not a de Polignac number, because 6011666566065 - 2¹⁵ = 6011666533297 is a prime.

It is a super-2 number, since 2×6011666566065² (a number of 26 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (6011666566069) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 66796295134 + ... + 66796295223.

It is an arithmetic number, because the mean of its divisors is an integer number (868351837327).

Almost surely, 2^{6011666566065} is an apocalyptic number.

It is an amenable number.

6011666566065 is a deficient number, since it is larger than the sum of its proper divisors (4408555481859).

6011666566065 is a wasteful number, since it uses less digits than its factorization.

6011666566065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133592590368 (or 133592590365 counting only the distinct ones).

The product of its (nonzero) digits is 6998400, while the sum is 54.

The spelling of 6011666566065 in words is "six trillion, eleven billion, six hundred sixty-six million, five hundred sixty-six thousand, sixty-five".