13206236187820 has 96 divisors (see below), whose sum is σ = 30008326134528. Its totient is φ = 4853020822272.

The previous prime is 13206236187797. The next prime is 13206236187917. The reversal of 13206236187820 is 2878163260231.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 60742147 + ... + 60959173.

It is an arithmetic number, because the mean of its divisors is an integer number (312586730568).

Almost surely, 2^{13206236187820} is an apocalyptic number.

13206236187820 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 13206236187820, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15004163067264).

13206236187820 is an abundant number, since it is smaller than the sum of its proper divisors (16802089946708).

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

13206236187820 is a wasteful number, since it uses less digits than its factorization.

13206236187820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 218159 (or 218157 counting only the distinct ones).

The product of its (nonzero) digits is 1161216, while the sum is 49.

The spelling of 13206236187820 in words is "thirteen trillion, two hundred six billion, two hundred thirty-six million, one hundred eighty-seven thousand, eight hundred twenty".