16513126544018 has 32 divisors (see below), whose sum is σ = 26685391420800. Its totient is φ = 7618489182720.

The previous prime is 16513126544017. The next prime is 16513126544053. The reversal of 16513126544018 is 81044562131561.

It is not an unprimeable number, because it can be changed into a prime (16513126544017) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1055211458 + ... + 1055227106.

It is an arithmetic number, because the mean of its divisors is an integer number (833918481900).

Almost surely, 2^{16513126544018} is an apocalyptic number.

16513126544018 is a deficient number, since it is larger than the sum of its proper divisors (10172264876782).

16513126544018 is a wasteful number, since it uses less digits than its factorization.

16513126544018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28802.

The product of its (nonzero) digits is 691200, while the sum is 47.

Adding to 16513126544018 its reverse (81044562131561), we get a palindrome (97557688675579).

The spelling of 16513126544018 in words is "sixteen trillion, five hundred thirteen billion, one hundred twenty-six million, five hundred forty-four thousand, eighteen".