16858464080836 has 45 divisors (see below), whose sum is σ = 34418137740749. Its totient is φ = 7224883586592.

The previous prime is 16858464080813. The next prime is 16858464080837. The reversal of 16858464080836 is 63808046485861.

The square root of 16858464080836 is 4105906.

It is a perfect power (a square), and thus also a powerful number.

16858464080836 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 11721242376900 + 5137221703936 = 3423630^2 + 2266544^2 .

It is a super-2 number, since 2×16858464080836² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (16858464080837) by changing a digit.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 402357840 + ... + 402399736.

Almost surely, 2^{16858464080836} is an apocalyptic number.

16858464080836 is the 4105906-th square number.

It is an amenable number.

16858464080836 is an abundant number, since it is smaller than the sum of its proper divisors (17559673659913).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16858464080836 is an frugal number, since it uses more digits than its factorization.

16858464080836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83826 (or 41906 counting only the distinct ones).

The product of its (nonzero) digits is 212336640, while the sum is 67.

The spelling of 16858464080836 in words is "sixteen trillion, eight hundred fifty-eight billion, four hundred sixty-four million, eighty thousand, eight hundred thirty-six".