13366438991360 has 320 divisors, whose sum is σ = 39792986335872. Its totient is φ = 4192813449216.

The previous prime is 13366438991309. The next prime is 13366438991383. The reversal of 13366438991360 is 6319983466331.

It is a tau number, because it is divible by the number of its divisors (320).

It is a junction number, because it is equal to n+sod(n) for n = 13366438991293 and 13366438991302.

It is a congruent number.

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, 26070602 + ... + 26578358.

Almost surely, 2^{13366438991360} is an apocalyptic number.

13366438991360 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 13366438991360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19896493167936).

13366438991360 is an abundant number, since it is smaller than the sum of its proper divisors (26426547344512).

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

13366438991360 is a wasteful number, since it uses less digits than its factorization.

13366438991360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 507913 (or 507897 counting only the distinct ones).

The product of its (nonzero) digits is 45349632, while the sum is 62.

The spelling of 13366438991360 in words is "thirteen trillion, three hundred sixty-six billion, four hundred thirty-eight million, nine hundred ninety-one thousand, three hundred sixty".