16261250365 has 8 divisors (see below), whose sum is σ = 19531102680. Its totient is φ = 12997265472.

The previous prime is 16261250323. The next prime is 16261250381. The reversal of 16261250365 is 56305216261.

It can be written as a sum of positive squares in 4 ways, for example, as 482373369 + 15778876996 = 21963^2 + 125614^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 16261250365 - 2¹¹ = 16261248317 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1460754 + ... + 1471843.

It is an arithmetic number, because the mean of its divisors is an integer number (2441387835).

Almost surely, 2^16261250365 is an apocalyptic number.

It is an amenable number.

16261250365 is a deficient number, since it is larger than the sum of its proper divisors (3269852315).

16261250365 is a wasteful number, since it uses less digits than its factorization.

16261250365 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2933711.

The product of its (nonzero) digits is 64800, while the sum is 37.

The spelling of 16261250365 in words is "sixteen billion, two hundred sixty-one million, two hundred fifty thousand, three hundred sixty-five".