66414022973 has 2 divisors, whose sum is σ = 66414022974. Its totient is φ = 66414022972.

The previous prime is 66414022963. The next prime is 66414023023. The reversal of 66414022973 is 37922041466.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 37062795289 + 29351227684 = 192517^2 + 171322^2 .

It is a cyclic number.

It is not a de Polignac number, because 66414022973 - 2⁴ = 66414022957 is a prime.

It is a super-3 number, since 3×66414022973³ (a number of 33 digits) contains 333 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (66414022903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33207011486 + 33207011487.

It is an arithmetic number, because the mean of its divisors is an integer number (33207011487).

Almost surely, 2^66414022973 is an apocalyptic number.

It is an amenable number.

66414022973 is a deficient number, since it is larger than the sum of its proper divisors (1).

66414022973 is an equidigital number, since it uses as much as digits as its factorization.

66414022973 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 435456, while the sum is 44.

The spelling of 66414022973 in words is "sixty-six billion, four hundred fourteen million, twenty-two thousand, nine hundred seventy-three".