13270645185 has 32 divisors (see below), whose sum is σ = 24451587072. Its totient is φ = 6020264640.

The previous prime is 13270645181. The next prime is 13270645187. The reversal of 13270645185 is 58154607231.

It is a happy number.

It is not a de Polignac number, because 13270645185 - 2² = 13270645181 is a prime.

It is a super-2 number, since 2×13270645185² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (13270645181) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 468639 + ... + 496148.

It is an arithmetic number, because the mean of its divisors is an integer number (764112096).

Almost surely, 2^13270645185 is an apocalyptic number.

13270645185 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13270645185 is a deficient number, since it is larger than the sum of its proper divisors (11180941887).

13270645185 is a wasteful number, since it uses less digits than its factorization.

13270645185 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 964933.

The product of its (nonzero) digits is 201600, while the sum is 42.

The spelling of 13270645185 in words is "thirteen billion, two hundred seventy million, six hundred forty-five thousand, one hundred eighty-five".