15091381613312 has 36 divisors (see below), whose sum is σ = 30125627779800. Its totient is φ = 7545236103168.

The previous prime is 15091381613303. The next prime is 15091381613317. The reversal of 15091381613312 is 21331618319051.

It is a super-2 number, since 2×15091381613312² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (15091381613317) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2500439 + ... + 6036137.

Almost surely, 2^{15091381613312} is an apocalyptic number.

It is an amenable number.

15091381613312 is a deficient number, since it is larger than the sum of its proper divisors (15034246166488).

15091381613312 is an equidigital number, since it uses as much as digits as its factorization.

15091381613312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3552388 (or 3552374 counting only the distinct ones).

The product of its (nonzero) digits is 116640, while the sum is 44.

The spelling of 15091381613312 in words is "fifteen trillion, ninety-one billion, three hundred eighty-one million, six hundred thirteen thousand, three hundred twelve".