16299884241 has 9 divisors (see below), whose sum is σ = 23544830491. Its totient is φ = 10866334152.

The previous prime is 16299884221. The next prime is 16299884243. The reversal of 16299884241 is 14248899261.

It is a happy number.

The square root of 16299884241 is 127671.

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

16299884241 is a `hidden beast` number, since 1 + 629 + 9 + 8 + 8 + 4 + 2 + 4 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 16115033025 + 184851216 = 126945^2 + 13596^2 .

It is a tau number, because it is divible by the number of its divisors (9).

It is not a de Polignac number, because 16299884241 - 2¹⁹ = 16299359953 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16299884243) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 361735 + ... + 404291.

Almost surely, 2^16299884241 is an apocalyptic number.

16299884241 is the 127671-st square number.

16299884241 is the 63836-th centered octagonal number.

It is an amenable number.

16299884241 is a deficient number, since it is larger than the sum of its proper divisors (7244946250).

16299884241 is an frugal number, since it uses more digits than its factorization.

16299884241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85120 (or 42560 counting only the distinct ones).

The product of its digits is 1990656, while the sum is 54.

The spelling of 16299884241 in words is "sixteen billion, two hundred ninety-nine million, eight hundred eighty-four thousand, two hundred forty-one".