16453877970244 has 135 divisors (see below), whose sum is σ = 34318775225483. Its totient is φ = 6897397135200.

The previous prime is 16453877970217. The next prime is 16453877970247. The reversal of 16453877970244 is 44207977835461.

The square root of 16453877970244 is 4056338.

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

It can be written as a sum of positive squares in 2 ways, for example, as 8158095512644 + 8295782457600 = 2856238^2 + 2880240^2 .

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 16453877970244.

It is not an unprimeable number, because it can be changed into a prime (16453877970247) by changing a digit.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 15081464139 + ... + 15081465229.

It is a 1-persistent number, because it is pandigital, but 2⋅16453877970244 = 32907755940488 is not.

Almost surely, 2^{16453877970244} is an apocalyptic number.

16453877970244 is the 4056338-th square number.

It is an amenable number.

16453877970244 is an abundant number, since it is smaller than the sum of its proper divisors (17864897255239).

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

16453877970244 is an frugal number, since it uses more digits than its factorization.

16453877970244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2260 (or 1117 counting only the distinct ones).

The product of its (nonzero) digits is 284497920, while the sum is 67.

The spelling of 16453877970244 in words is "sixteen trillion, four hundred fifty-three billion, eight hundred seventy-seven million, nine hundred seventy thousand, two hundred forty-four".