1666671594316 has 12 divisors (see below), whose sum is σ = 3088244424888. Its totient is φ = 784316044352.

The previous prime is 1666671594307. The next prime is 1666671594319. The reversal of 1666671594316 is 6134951766661.

It is not an unprimeable number, because it can be changed into a prime (1666671594319) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12254938126 + ... + 12254938261.

It is an arithmetic number, because the mean of its divisors is an integer number (257353702074).

Almost surely, 2^{1666671594316} is an apocalyptic number.

It is an amenable number.

1666671594316 is a deficient number, since it is larger than the sum of its proper divisors (1421572830572).

1666671594316 is a wasteful number, since it uses less digits than its factorization.

1666671594316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24509876408 (or 24509876406 counting only the distinct ones).

The product of its digits is 29393280, while the sum is 61.

The spelling of 1666671594316 in words is "one trillion, six hundred sixty-six billion, six hundred seventy-one million, five hundred ninety-four thousand, three hundred sixteen".