16166066015137 has 2 divisors, whose sum is σ = 16166066015138. Its totient is φ = 16166066015136.

The previous prime is 16166066015119. The next prime is 16166066015167. The reversal of 16166066015137 is 73151066066161.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15689964635136 + 476101380001 = 3961056^2 + 690001^2 .

It is a cyclic number.

It is not a de Polignac number, because 16166066015137 - 2¹¹ = 16166066013089 is a prime.

It is a super-2 number, since 2×16166066015137² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (16166066015167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8083033007568 + 8083033007569.

It is an arithmetic number, because the mean of its divisors is an integer number (8083033007569).

Almost surely, 2^{16166066015137} is an apocalyptic number.

It is an amenable number.

16166066015137 is a deficient number, since it is larger than the sum of its proper divisors (1).

16166066015137 is an equidigital number, since it uses as much as digits as its factorization.

16166066015137 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 816480, while the sum is 49.

The spelling of 16166066015137 in words is "sixteen trillion, one hundred sixty-six billion, sixty-six million, fifteen thousand, one hundred thirty-seven".