16531706803207 has 32 divisors (see below), whose sum is σ = 18491474073600. Its totient is φ = 14723832195072.

The previous prime is 16531706803177. The next prime is 16531706803229. The reversal of 16531706803207 is 70230860713561.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16531706803207 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16531706803607) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1382298 + ... + 5913895.

It is an arithmetic number, because the mean of its divisors is an integer number (577858564800).

Almost surely, 2^{16531706803207} is an apocalyptic number.

16531706803207 is a deficient number, since it is larger than the sum of its proper divisors (1959767270393).

16531706803207 is a wasteful number, since it uses less digits than its factorization.

16531706803207 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7296367.

The product of its (nonzero) digits is 1270080, while the sum is 49.

The spelling of 16531706803207 in words is "sixteen trillion, five hundred thirty-one billion, seven hundred six million, eight hundred three thousand, two hundred seven".