15820134152 has 8 divisors (see below), whose sum is σ = 29662751550. Its totient is φ = 7910067072.

The previous prime is 15820134139. The next prime is 15820134157. The reversal of 15820134152 is 25143102851.

15820134152 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., 13295473636 + 2524660516 = 115306^2 + 50246^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (15820134157) 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, 988758377 + ... + 988758392.

Almost surely, 2^15820134152 is an apocalyptic number.

It is an amenable number.

15820134152 is a deficient number, since it is larger than the sum of its proper divisors (13842617398).

15820134152 is a wasteful number, since it uses less digits than its factorization.

15820134152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1977516775 (or 1977516771 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 32.

The spelling of 15820134152 in words is "fifteen billion, eight hundred twenty million, one hundred thirty-four thousand, one hundred fifty-two".