16447722317 has 8 divisors (see below), whose sum is σ = 17878474656. Its totient is φ = 15040618992.

The previous prime is 16447722301. The next prime is 16447722371. The reversal of 16447722317 is 71322774461.

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 16447722317 - 2⁴ = 16447722301 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 (16447722217) 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, 5910803 + ... + 5913584.

It is an arithmetic number, because the mean of its divisors is an integer number (2234809332).

Almost surely, 2^16447722317 is an apocalyptic number.

It is an amenable number.

16447722317 is a deficient number, since it is larger than the sum of its proper divisors (1430752339).

16447722317 is a wasteful number, since it uses less digits than its factorization.

16447722317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11824507.

The product of its digits is 395136, while the sum is 44.

The spelling of 16447722317 in words is "sixteen billion, four hundred forty-seven million, seven hundred twenty-two thousand, three hundred seventeen".