15799575555 has 32 divisors (see below), whose sum is σ = 28221304320. Its totient is φ = 8386489440.

The previous prime is 15799575499. The next prime is 15799575559. The reversal of 15799575555 is 55557599751.

15799575555 is a `hidden beast` number, since 1 + 5 + 7 + 9 + 9 + 5 + 75 + 555 = 666.

15799575555 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 15799575555 - 2⁷ = 15799575427 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 15799575492 and 15799575501.

It is not an unprimeable number, because it can be changed into a prime (15799575559) 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 31 ways as a sum of consecutive naturals, for example, 248847 + ... + 305816.

It is an arithmetic number, because the mean of its divisors is an integer number (881915760).

Almost surely, 2^15799575555 is an apocalyptic number.

15799575555 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

15799575555 is a deficient number, since it is larger than the sum of its proper divisors (12421728765).

15799575555 is a wasteful number, since it uses less digits than its factorization.

15799575555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 554888 (or 554882 counting only the distinct ones).

The product of its digits is 62015625, while the sum is 63.

The spelling of 15799575555 in words is "fifteen billion, seven hundred ninety-nine million, five hundred seventy-five thousand, five hundred fifty-five".