16066471693 has 8 divisors (see below), whose sum is σ = 16175848736. Its totient is φ = 15957226800.

The previous prime is 16066471657. The next prime is 16066471699. The reversal of 16066471693 is 39617466061.

It is a happy number.

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 16066471693 - 2⁹ = 16066471181 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16066471699) 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, 217363 + ... + 281743.

It is an arithmetic number, because the mean of its divisors is an integer number (2021981092).

Almost surely, 2^16066471693 is an apocalyptic number.

It is an amenable number.

16066471693 is a deficient number, since it is larger than the sum of its proper divisors (109377043).

16066471693 is a wasteful number, since it uses less digits than its factorization.

16066471693 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66075.

The product of its (nonzero) digits is 979776, while the sum is 49.

The spelling of 16066471693 in words is "sixteen billion, sixty-six million, four hundred seventy-one thousand, six hundred ninety-three".