16722017543 has 16 divisors (see below), whose sum is σ = 21754676736. Its totient is φ = 12463614240.

The previous prime is 16722017539. The next prime is 16722017573. The reversal of 16722017543 is 34571022761.

It is not a de Polignac number, because 16722017543 - 2² = 16722017539 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 16722017497 and 16722017506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16722017573) 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, 4719296 + ... + 4722837.

It is an arithmetic number, because the mean of its divisors is an integer number (1359667296).

Almost surely, 2^16722017543 is an apocalyptic number.

16722017543 is a deficient number, since it is larger than the sum of its proper divisors (5032659193).

16722017543 is a wasteful number, since it uses less digits than its factorization.

16722017543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9442174.

The product of its (nonzero) digits is 70560, while the sum is 38.

The spelling of 16722017543 in words is "sixteen billion, seven hundred twenty-two million, seventeen thousand, five hundred forty-three".