6106666015665 has 40 divisors (see below), whose sum is σ = 10948572983040. Its totient is φ = 3256350411168.

The previous prime is 6106666015651. The next prime is 6106666015669. The reversal of 6106666015665 is 5665106666016.

It is not a de Polignac number, because 6106666015665 - 2⁶ = 6106666015601 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (6106666015669) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1214496 + ... + 3699774.

It is an arithmetic number, because the mean of its divisors is an integer number (273714324576).

Almost surely, 2^{6106666015665} is an apocalyptic number.

It is an amenable number.

6106666015665 is a deficient number, since it is larger than the sum of its proper divisors (4841906967375).

6106666015665 is a wasteful number, since it uses less digits than its factorization.

6106666015665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2491363 (or 2491354 counting only the distinct ones).

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

The spelling of 6106666015665 in words is "six trillion, one hundred six billion, six hundred sixty-six million, fifteen thousand, six hundred sixty-five".