15858542164 has 6 divisors (see below), whose sum is σ = 27752448794. Its totient is φ = 7929271080.

The previous prime is 15858542111. The next prime is 15858542221. The reversal of 15858542164 is 46124585851.

15858542164 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 8308322500 + 7550219664 = 91150^2 + 86892^2 .

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 as a sum of consecutive naturals, namely, 1982317767 + ... + 1982317774.

Almost surely, 2^15858542164 is an apocalyptic number.

It is an amenable number.

15858542164 is a deficient number, since it is larger than the sum of its proper divisors (11893906630).

15858542164 is a wasteful number, since it uses less digits than its factorization.

15858542164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3964635545 (or 3964635543 counting only the distinct ones).

The product of its digits is 1536000, while the sum is 49.

The spelling of 15858542164 in words is "fifteen billion, eight hundred fifty-eight million, five hundred forty-two thousand, one hundred sixty-four".