2166571677117 has 32 divisors (see below), whose sum is σ = 3043233244800. Its totient is φ = 1369642926080.

The previous prime is 2166571677113. The next prime is 2166571677119. The reversal of 2166571677117 is 7117761756612.

It is not a de Polignac number, because 2166571677117 - 2² = 2166571677113 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2166571677113) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 855492 + ... + 2250557.

It is an arithmetic number, because the mean of its divisors is an integer number (95101038900).

Almost surely, 2^{2166571677117} is an apocalyptic number.

It is an amenable number.

2166571677117 is a deficient number, since it is larger than the sum of its proper divisors (876661567683).

2166571677117 is a wasteful number, since it uses less digits than its factorization.

2166571677117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3106253.

The product of its digits is 5186160, while the sum is 57.

The spelling of 2166571677117 in words is "two trillion, one hundred sixty-six billion, five hundred seventy-one million, six hundred seventy-seven thousand, one hundred seventeen".