15420116568 has 16 divisors (see below), whose sum is σ = 38550291480. Its totient is φ = 5140038848.

The previous prime is 15420116563. The next prime is 15420116587. The reversal of 15420116568 is 86561102451.

15420116568 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15420116563) 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 3 ways as a sum of consecutive naturals, for example, 321252405 + ... + 321252452.

Almost surely, 2^15420116568 is an apocalyptic number.

It is an amenable number.

15420116568 is an abundant number, since it is smaller than the sum of its proper divisors (23130174912).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

15420116568 is a wasteful number, since it uses less digits than its factorization.

15420116568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 642504866 (or 642504862 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 39.

The spelling of 15420116568 in words is "fifteen billion, four hundred twenty million, one hundred sixteen thousand, five hundred sixty-eight".