15816133156 has 6 divisors (see below), whose sum is σ = 27678233030. Its totient is φ = 7908066576.

The previous prime is 15816133153. The next prime is 15816133199. The reversal of 15816133156 is 65133161851.

It is a happy number.

15816133156 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., 14632773156 + 1183360000 = 120966^2 + 34400^2 .

It is not an unprimeable number, because it can be changed into a prime (15816133153) 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 as a sum of consecutive naturals, namely, 1977016641 + ... + 1977016648.

Almost surely, 2^15816133156 is an apocalyptic number.

It is an amenable number.

15816133156 is a deficient number, since it is larger than the sum of its proper divisors (11862099874).

15816133156 is a wasteful number, since it uses less digits than its factorization.

15816133156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3954033293 (or 3954033291 counting only the distinct ones).

The product of its digits is 64800, while the sum is 40.

The spelling of 15816133156 in words is "fifteen billion, eight hundred sixteen million, one hundred thirty-three thousand, one hundred fifty-six".