16722030673 has 4 divisors (see below), whose sum is σ = 16731681588. Its totient is φ = 16712379760.

The previous prime is 16722030631. The next prime is 16722030697. The reversal of 16722030673 is 37603022761.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 37603022761 = 83 ⋅453048467.

It can be written as a sum of positive squares in 2 ways, for example, as 3360289024 + 13361741649 = 57968^2 + 115593^2 .

It is a cyclic number.

It is not a de Polignac number, because 16722030673 - 2²¹ = 16719933521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16722030613) 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, 4822858 + ... + 4826323.

It is an arithmetic number, because the mean of its divisors is an integer number (4182920397).

Almost surely, 2^16722030673 is an apocalyptic number.

It is an amenable number.

16722030673 is a deficient number, since it is larger than the sum of its proper divisors (9650915).

16722030673 is an equidigital number, since it uses as much as digits as its factorization.

16722030673 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9650914.

The product of its (nonzero) digits is 63504, while the sum is 37.

The spelling of 16722030673 in words is "sixteen billion, seven hundred twenty-two million, thirty thousand, six hundred seventy-three".