13066733412 has 72 divisors (see below), whose sum is σ = 34641262656. Its totient is φ = 4145004864.

The previous prime is 13066733369. The next prime is 13066733437. The reversal of 13066733412 is 21433766031.

13066733412 is a `hidden beast` number, since 1 + 306 + 6 + 7 + 3 + 341 + 2 = 666.

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 23 ways as a sum of consecutive naturals, for example, 123063 + ... + 203169.

It is an arithmetic number, because the mean of its divisors is an integer number (481128648).

Almost surely, 2^13066733412 is an apocalyptic number.

13066733412 is a gapful number since it is divisible by the number (12) 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 13066733412, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17320631328).

13066733412 is an abundant number, since it is smaller than the sum of its proper divisors (21574529244).

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

13066733412 is a wasteful number, since it uses less digits than its factorization.

13066733412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80337 (or 80332 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 36.

The spelling of 13066733412 in words is "thirteen billion, sixty-six million, seven hundred thirty-three thousand, four hundred twelve".