13855018680 has 64 divisors (see below), whose sum is σ = 46183399200. Its totient is φ = 3694671360.

The previous prime is 13855018679. The next prime is 13855018687. The reversal of 13855018680 is 8681055831.

13855018680 is a `hidden beast` number, since 1 + 3 + 8 + 550 + 18 + 6 + 80 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13855018687) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6413281 + ... + 6415440.

Almost surely, 2^13855018680 is an apocalyptic number.

13855018680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13855018680 is an abundant number, since it is smaller than the sum of its proper divisors (32328380520).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13855018680 is a wasteful number, since it uses less digits than its factorization.

13855018680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12828741 (or 12828731 counting only the distinct ones).

The product of its (nonzero) digits is 230400, while the sum is 45.

The spelling of 13855018680 in words is "thirteen billion, eight hundred fifty-five million, eighteen thousand, six hundred eighty".