13686455220 has 48 divisors (see below), whose sum is σ = 38489458560. Its totient is φ = 3633780096.

The previous prime is 13686455213. The next prime is 13686455227. The reversal of 13686455220 is 2255468631.

It is an interprime number because it is at equal distance from previous prime (13686455213) and next prime (13686455227).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13686455227) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 484312 + ... + 511791.

It is an arithmetic number, because the mean of its divisors is an integer number (801863720).

Almost surely, 2^13686455220 is an apocalyptic number.

13686455220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13686455220 is an abundant number, since it is smaller than the sum of its proper divisors (24803003340).

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

13686455220 is a wasteful number, since it uses less digits than its factorization.

13686455220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 996344 (or 996342 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 42.

The spelling of 13686455220 in words is "thirteen billion, six hundred eighty-six million, four hundred fifty-five thousand, two hundred twenty".