15682803361 has 3 divisors (see below), whose sum is σ = 15682928593. Its totient is φ = 15682678130.

The previous prime is 15682803337. The next prime is 15682803397. The reversal of 15682803361 is 16330828651.

The square root of 15682803361 is 125231.

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

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 16330828651 = 461 ⋅35424791.

It is not a de Polignac number, because 15682803361 - 2¹¹ = 15682801313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15682803061) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 62616 + ... + 187846.

Almost surely, 2^15682803361 is an apocalyptic number.

15682803361 is the 125231-st square number.

15682803361 is the 62616-th centered octagonal number.

It is an amenable number.

15682803361 is a deficient number, since it is larger than the sum of its proper divisors (125232).

15682803361 is an frugal number, since it uses more digits than its factorization.

15682803361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250462 (or 125231 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 43.

The spelling of 15682803361 in words is "fifteen billion, six hundred eighty-two million, eight hundred three thousand, three hundred sixty-one".