13688206020 has 144 divisors (see below), whose sum is σ = 42304167360. Its totient is φ = 3581625600.

The previous prime is 13688205991. The next prime is 13688206033. The reversal of 13688206020 is 2060288631.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5389911 + ... + 5392449.

It is an arithmetic number, because the mean of its divisors is an integer number (293778940).

Almost surely, 2^13688206020 is an apocalyptic number.

13688206020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13688206020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21152083680).

13688206020 is an abundant number, since it is smaller than the sum of its proper divisors (28615961340).

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

13688206020 is a wasteful number, since it uses less digits than its factorization.

13688206020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3106 (or 3101 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The spelling of 13688206020 in words is "thirteen billion, six hundred eighty-eight million, two hundred six thousand, twenty".