2666185034666 has 8 divisors (see below), whose sum is σ = 4049901318720. Its totient is φ = 1316217928428.

The previous prime is 2666185034659. The next prime is 2666185034683. The reversal of 2666185034666 is 6664305816662.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8437294256 + ... + 8437294571.

It is an arithmetic number, because the mean of its divisors is an integer number (506237664840).

Almost surely, 2^{2666185034666} is an apocalyptic number.

2666185034666 is a deficient number, since it is larger than the sum of its proper divisors (1383716284054).

2666185034666 is a wasteful number, since it uses less digits than its factorization.

2666185034666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16874588908.

The product of its (nonzero) digits is 44789760, while the sum is 59.

The spelling of 2666185034666 in words is "two trillion, six hundred sixty-six billion, one hundred eighty-five million, thirty-four thousand, six hundred sixty-six".