13156755385 has 8 divisors (see below), whose sum is σ = 15789771720. Its totient is φ = 10524294144.

The previous prime is 13156755349. The next prime is 13156755419. The reversal of 13156755385 is 58355765131.

It can be written as a sum of positive squares in 4 ways, for example, as 1190802064 + 11965953321 = 34508^2 + 109389^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13156755385 - 2⁹ = 13156754873 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 84712 + ... + 183001.

It is an arithmetic number, because the mean of its divisors is an integer number (1973721465).

Almost surely, 2^13156755385 is an apocalyptic number.

It is an amenable number.

13156755385 is a deficient number, since it is larger than the sum of its proper divisors (2633016335).

13156755385 is an equidigital number, since it uses as much as digits as its factorization.

13156755385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 277547.

The product of its digits is 1890000, while the sum is 49.

The spelling of 13156755385 in words is "thirteen billion, one hundred fifty-six million, seven hundred fifty-five thousand, three hundred eighty-five".