2013666066243 has 24 divisors (see below), whose sum is σ = 3205215245232. Its totient is φ = 1210360995648.

The previous prime is 2013666066229. The next prime is 2013666066257. The reversal of 2013666066243 is 3426606663102.

It is an interprime number because it is at equal distance from previous prime (2013666066229) and next prime (2013666066257).

It is not a de Polignac number, because 2013666066243 - 2⁸ = 2013666065987 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2013666066263) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 200120796 + ... + 200130857.

It is an arithmetic number, because the mean of its divisors is an integer number (133550635218).

Almost surely, 2^{2013666066243} is an apocalyptic number.

2013666066243 is a deficient number, since it is larger than the sum of its proper divisors (1191549178989).

2013666066243 is a wasteful number, since it uses less digits than its factorization.

2013666066243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 400251715 (or 400251712 counting only the distinct ones).

The product of its (nonzero) digits is 1119744, while the sum is 45.

The spelling of 2013666066243 in words is "two trillion, thirteen billion, six hundred sixty-six million, sixty-six thousand, two hundred forty-three".