13662012324020 has 24 divisors (see below), whose sum is σ = 28720845157704. Its totient is φ = 5458972686336.

The previous prime is 13662012324017. The next prime is 13662012324031. The reversal of 13662012324020 is 2042321026631.

It can be written as a sum of positive squares in 4 ways, for example, as 2141106415504 + 11520905908516 = 1463252^2 + 3394246^2 .

It is a super-2 number, since 2×13662012324020² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 364495997 + ... + 364533476.

It is an arithmetic number, because the mean of its divisors is an integer number (1196701881571).

Almost surely, 2^{13662012324020} is an apocalyptic number.

13662012324020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13662012324020 is an abundant number, since it is smaller than the sum of its proper divisors (15058832833684).

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

13662012324020 is a wasteful number, since it uses less digits than its factorization.

13662012324020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 729030419 (or 729030417 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 32.

The spelling of 13662012324020 in words is "thirteen trillion, six hundred sixty-two billion, twelve million, three hundred twenty-four thousand, twenty".