16071666617137 has 2 divisors, whose sum is σ = 16071666617138. Its totient is φ = 16071666617136.

The previous prime is 16071666617047. The next prime is 16071666617183. The reversal of 16071666617137 is 73171666617061.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15606537161121 + 465129456016 = 3950511^2 + 682004^2 .

It is an emirp because it is prime and its reverse (73171666617061) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 16071666617137 - 2¹⁹ = 16071666092849 is a prime.

It is a super-2 number, since 2×16071666617137² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (16071666617537) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8035833308568 + 8035833308569.

It is an arithmetic number, because the mean of its divisors is an integer number (8035833308569).

Almost surely, 2^{16071666617137} is an apocalyptic number.

It is an amenable number.

16071666617137 is a deficient number, since it is larger than the sum of its proper divisors (1).

16071666617137 is an equidigital number, since it uses as much as digits as its factorization.

16071666617137 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8001504, while the sum is 58.

The spelling of 16071666617137 in words is "sixteen trillion, seventy-one billion, six hundred sixty-six million, six hundred seventeen thousand, one hundred thirty-seven".