16722273717 has 16 divisors (see below), whose sum is σ = 25850858880. Its totient is φ = 10663478496.

The previous prime is 16722273707. The next prime is 16722273781. The reversal of 16722273717 is 71737222761.

It is not a de Polignac number, because 16722273717 - 2⁸ = 16722273461 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16722273707) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13463368 + ... + 13464609.

It is an arithmetic number, because the mean of its divisors is an integer number (1615678680).

Almost surely, 2^16722273717 is an apocalyptic number.

It is an amenable number.

16722273717 is a deficient number, since it is larger than the sum of its proper divisors (9128585163).

16722273717 is a wasteful number, since it uses less digits than its factorization.

16722273717 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26928009 (or 26928003 counting only the distinct ones).

The product of its digits is 345744, while the sum is 45.

The spelling of 16722273717 in words is "sixteen billion, seven hundred twenty-two million, two hundred seventy-three thousand, seven hundred seventeen".