16207072249 has 9 divisors (see below), whose sum is σ = 16485016431. Its totient is φ = 15933744120.

The previous prime is 16207072241. The next prime is 16207072283. The reversal of 16207072249 is 94227070261.

The square root of 16207072249 is 127307.

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

16207072249 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., 527023849 + 15680048400 = 22957^2 + 125220^2 .

It is not a de Polignac number, because 16207072249 - 2³ = 16207072241 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16207072241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 7764684 + ... + 7766770.

Almost surely, 2^16207072249 is an apocalyptic number.

16207072249 is the 127307-th square number.

16207072249 is the 63654-th centered octagonal number.

It is an amenable number.

16207072249 is a deficient number, since it is larger than the sum of its proper divisors (277944182).

16207072249 is an frugal number, since it uses more digits than its factorization.

16207072249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4296 (or 2148 counting only the distinct ones).

The product of its (nonzero) digits is 84672, while the sum is 40.

The spelling of 16207072249 in words is "sixteen billion, two hundred seven million, seventy-two thousand, two hundred forty-nine".