2166662114623 has 4 divisors (see below), whose sum is σ = 2166796932048. Its totient is φ = 2166527297200.

The previous prime is 2166662114579. The next prime is 2166662114629. The reversal of 2166662114623 is 3264112666612.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2166662114623 - 2²⁵ = 2166628560191 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2166662114629) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67384603 + ... + 67416748.

It is an arithmetic number, because the mean of its divisors is an integer number (541699233012).

Almost surely, 2^{2166662114623} is an apocalyptic number.

2166662114623 is a deficient number, since it is larger than the sum of its proper divisors (134817425).

2166662114623 is a wasteful number, since it uses less digits than its factorization.

2166662114623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134817424.

The product of its digits is 746496, while the sum is 46.

The spelling of 2166662114623 in words is "two trillion, one hundred sixty-six billion, six hundred sixty-two million, one hundred fourteen thousand, six hundred twenty-three".