15591940299448 has 16 divisors (see below), whose sum is σ = 29327111687880. Its totient is φ = 7771377182688.

The previous prime is 15591940299443. The next prime is 15591940299457. The reversal of 15591940299448 is 84499204919551.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15591940299443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3074118186 + ... + 3074123257.

Almost surely, 2^{15591940299448} is an apocalyptic number.

It is an amenable number.

15591940299448 is a deficient number, since it is larger than the sum of its proper divisors (13735171388432).

15591940299448 is a wasteful number, since it uses less digits than its factorization.

15591940299448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6148241766 (or 6148241762 counting only the distinct ones).

The product of its (nonzero) digits is 167961600, while the sum is 70.

The spelling of 15591940299448 in words is "fifteen trillion, five hundred ninety-one billion, nine hundred forty million, two hundred ninety-nine thousand, four hundred forty-eight".