1666118232994 has 8 divisors (see below), whose sum is σ = 2646187781868. Its totient is φ = 784055639040.

The previous prime is 1666118232953. The next prime is 1666118233007. The reversal of 1666118232994 is 4992328116661.

It can be written as a sum of positive squares in 2 ways, for example, as 1320286027369 + 345832205625 = 1149037^2 + 588075^2 .

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, 24501738687 + ... + 24501738754.

Almost surely, 2^{1666118232994} is an apocalyptic number.

1666118232994 is a deficient number, since it is larger than the sum of its proper divisors (980069548874).

1666118232994 is a wasteful number, since it uses less digits than its factorization.

1666118232994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49003477460.

The product of its digits is 6718464, while the sum is 58.

The spelling of 1666118232994 in words is "one trillion, six hundred sixty-six billion, one hundred eighteen million, two hundred thirty-two thousand, nine hundred ninety-four".