1666576713 has 8 divisors (see below), whose sum is σ = 2269381248. Its totient is φ = 1087411664.

The previous prime is 1666576699. The next prime is 1666576729. The reversal of 1666576713 is 3176756661.

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

It is a cyclic number.

It is not a de Polignac number, because 1666576713 - 2⁹ = 1666576201 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1666576753) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5909706 + ... + 5909987.

It is an arithmetic number, because the mean of its divisors is an integer number (283672656).

Almost surely, 2^1666576713 is an apocalyptic number.

It is an amenable number.

1666576713 is a deficient number, since it is larger than the sum of its proper divisors (602804535).

1666576713 is a wasteful number, since it uses less digits than its factorization.

1666576713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11819743.

The product of its digits is 952560, while the sum is 48.

The square root of 1666576713 is about 40823.7273286014. The cubic root of 1666576713 is about 1185.6097707399.

The spelling of 1666576713 in words is "one billion, six hundred sixty-six million, five hundred seventy-six thousand, seven hundred thirteen".