16722054605 has 16 divisors (see below), whose sum is σ = 20263877040. Its totient is φ = 13246198272.

The previous prime is 16722054599. The next prime is 16722054673. The reversal of 16722054605 is 50645022761.

It can be written as a sum of positive squares in 8 ways, for example, as 514473124 + 16207581481 = 22682^2 + 127309^2 .

It is a cyclic number.

It is not a de Polignac number, because 16722054605 - 2¹² = 16722050509 is a prime.

It is a super-2 number, since 2×16722054605² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 893807 + ... + 912323.

It is an arithmetic number, because the mean of its divisors is an integer number (1266492315).

Almost surely, 2^16722054605 is an apocalyptic number.

It is an amenable number.

16722054605 is a deficient number, since it is larger than the sum of its proper divisors (3541822435).

16722054605 is a wasteful number, since it uses less digits than its factorization.

16722054605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20288.

The product of its (nonzero) digits is 100800, while the sum is 38.

The spelling of 16722054605 in words is "sixteen billion, seven hundred twenty-two million, fifty-four thousand, six hundred five".