13155693856 has 24 divisors (see below), whose sum is σ = 25914878640. Its totient is φ = 6574137408.

The previous prime is 13155693833. The next prime is 13155693869. The reversal of 13155693856 is 65839655131.

It is a super-2 number, since 2×13155693856² (a number of 21 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (52) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57846 + ... + 172213.

It is an arithmetic number, because the mean of its divisors is an integer number (1079786610).

Almost surely, 2^13155693856 is an apocalyptic number.

13155693856 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

13155693856 is a deficient number, since it is larger than the sum of its proper divisors (12759184784).

13155693856 is a wasteful number, since it uses less digits than its factorization.

13155693856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 231856 (or 231848 counting only the distinct ones).

The product of its digits is 2916000, while the sum is 52.

The spelling of 13155693856 in words is "thirteen billion, one hundred fifty-five million, six hundred ninety-three thousand, eight hundred fifty-six".