13661341043412 has 96 divisors (see below), whose sum is σ = 32345980374400. Its totient is φ = 4487181484032.

The previous prime is 13661341043411. The next prime is 13661341043437. The reversal of 13661341043412 is 21434014316631.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13661341043411) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1024158639 + ... + 1024171977.

Almost surely, 2^{13661341043412} is an apocalyptic number.

13661341043412 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13661341043412 is an abundant number, since it is smaller than the sum of its proper divisors (18684639330988).

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

13661341043412 is a wasteful number, since it uses less digits than its factorization.

13661341043412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17705 (or 17703 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 39.

The spelling of 13661341043412 in words is "thirteen trillion, six hundred sixty-one billion, three hundred forty-one million, forty-three thousand, four hundred twelve".