16459085613125 has 20 divisors (see below), whose sum is σ = 20904441846684. Its totient is φ = 12951411600000.

The previous prime is 16459085613121. The next prime is 16459085613133. The reversal of 16459085613125 is 52131658095461.

It can be written as a sum of positive squares in 10 ways, for example, as 11875350199969 + 4583735413156 = 3446063^2 + 2140966^2 .

It is not a de Polignac number, because 16459085613125 - 2² = 16459085613121 is a prime.

It is a Smith number, since the sum of its digits (56) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16459085613121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 215818736 + ... + 215894985.

Almost surely, 2^{16459085613125} is an apocalyptic number.

It is an amenable number.

16459085613125 is a deficient number, since it is larger than the sum of its proper divisors (4445356233559).

16459085613125 is an frugal number, since it uses more digits than its factorization.

16459085613125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 431713802 (or 431713787 counting only the distinct ones).

The product of its (nonzero) digits is 7776000, while the sum is 56.

The spelling of 16459085613125 in words is "sixteen trillion, four hundred fifty-nine billion, eighty-five million, six hundred thirteen thousand, one hundred twenty-five".