9936799155 has 48 divisors (see below), whose sum is σ = 17806108320. Its totient is φ = 5122828800.

The previous prime is 9936799139. The next prime is 9936799157. The reversal of 9936799155 is 5519976399.

It is a happy number.

It is not a de Polignac number, because 9936799155 - 2⁴ = 9936799139 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 9936799092 and 9936799101.

It is not an unprimeable number, because it can be changed into a prime (9936799157) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 176400 + ... + 225810.

It is an arithmetic number, because the mean of its divisors is an integer number (370960590).

Almost surely, 2^9936799155 is an apocalyptic number.

9936799155 is a deficient number, since it is larger than the sum of its proper divisors (7869309165).

9936799155 is a wasteful number, since it uses less digits than its factorization.

9936799155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49572 (or 49569 counting only the distinct ones).

The product of its digits is 20667150, while the sum is 63.

The square root of 9936799155 is about 99683.4948976008. The cubic root of 9936799155 is about 2149.8863581542.

The spelling of 9936799155 in words is "nine billion, nine hundred thirty-six million, seven hundred ninety-nine thousand, one hundred fifty-five".