16066919173 has 2 divisors, whose sum is σ = 16066919174. Its totient is φ = 16066919172.

The previous prime is 16066919171. The next prime is 16066919201. The reversal of 16066919173 is 37191966061.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14681441889 + 1385477284 = 121167^2 + 37222^2 .

It is a cyclic number.

It is not a de Polignac number, because 16066919173 - 2¹ = 16066919171 is a prime.

Together with 16066919171, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16066919171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8033459586 + 8033459587.

It is an arithmetic number, because the mean of its divisors is an integer number (8033459587).

Almost surely, 2^16066919173 is an apocalyptic number.

It is an amenable number.

16066919173 is a deficient number, since it is larger than the sum of its proper divisors (1).

16066919173 is an equidigital number, since it uses as much as digits as its factorization.

16066919173 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 367416, while the sum is 49.

The spelling of 16066919173 in words is "sixteen billion, sixty-six million, nine hundred nineteen thousand, one hundred seventy-three".