15946530868 has 12 divisors (see below), whose sum is σ = 27909898240. Its totient is φ = 7972274232.

The previous prime is 15946530799. The next prime is 15946530889. The reversal of 15946530868 is 86803564951.

15946530868 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (55) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 210996 + ... + 276427.

Almost surely, 2^15946530868 is an apocalyptic number.

It is an amenable number.

15946530868 is a deficient number, since it is larger than the sum of its proper divisors (11963367372).

15946530868 is a wasteful number, since it uses less digits than its factorization.

15946530868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 495606 (or 495604 counting only the distinct ones).

The product of its (nonzero) digits is 6220800, while the sum is 55.

The spelling of 15946530868 in words is "fifteen billion, nine hundred forty-six million, five hundred thirty thousand, eight hundred sixty-eight".