16712507217 has 16 divisors (see below), whose sum is σ = 26807029760. Its totient is φ = 9047372112.

The previous prime is 16712507213. The next prime is 16712507239. The reversal of 16712507217 is 71270521761.

It is a happy number.

16712507217 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 16712507217 - 2² = 16712507213 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16712507213) 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 15 ways as a sum of consecutive naturals, for example, 20942593 + ... + 20943390.

It is an arithmetic number, because the mean of its divisors is an integer number (1675439360).

Almost surely, 2^16712507217 is an apocalyptic number.

It is an amenable number.

16712507217 is a deficient number, since it is larger than the sum of its proper divisors (10094522543).

16712507217 is a wasteful number, since it uses less digits than its factorization.

16712507217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41886012.

The product of its (nonzero) digits is 41160, while the sum is 39.

The spelling of 16712507217 in words is "sixteen billion, seven hundred twelve million, five hundred seven thousand, two hundred seventeen".