16347132517 has 2 divisors, whose sum is σ = 16347132518. Its totient is φ = 16347132516.

The previous prime is 16347132499. The next prime is 16347132523. The reversal of 16347132517 is 71523174361.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14438665921 + 1908466596 = 120161^2 + 43686^2 .

It is a cyclic number.

It is not a de Polignac number, because 16347132517 - 2²⁷ = 16212914789 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 16347132517.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16347132547) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8173566258 + 8173566259.

It is an arithmetic number, because the mean of its divisors is an integer number (8173566259).

Almost surely, 2^16347132517 is an apocalyptic number.

It is an amenable number.

16347132517 is a deficient number, since it is larger than the sum of its proper divisors (1).

16347132517 is an equidigital number, since it uses as much as digits as its factorization.

16347132517 is an evil number, because the sum of its binary digits is even.

The product of its digits is 105840, while the sum is 40.

The spelling of 16347132517 in words is "sixteen billion, three hundred forty-seven million, one hundred thirty-two thousand, five hundred seventeen".