16025540289 has 8 divisors (see below), whose sum is σ = 23309876832. Its totient is φ = 9712448640.

The previous prime is 16025540287. The next prime is 16025540309. The reversal of 16025540289 is 98204552061.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 16025540289 - 2¹ = 16025540287 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 16025540289.

It is not an unprimeable number, because it can be changed into a prime (16025540281) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 242811184 + ... + 242811249.

It is an arithmetic number, because the mean of its divisors is an integer number (2913734604).

Almost surely, 2^16025540289 is an apocalyptic number.

It is an amenable number.

16025540289 is a deficient number, since it is larger than the sum of its proper divisors (7284336543).

16025540289 is a wasteful number, since it uses less digits than its factorization.

16025540289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 485622447.

The product of its (nonzero) digits is 172800, while the sum is 42.

The spelling of 16025540289 in words is "sixteen billion, twenty-five million, five hundred forty thousand, two hundred eighty-nine".