66215114179 has 2 divisors, whose sum is σ = 66215114180. Its totient is φ = 66215114178.

The previous prime is 66215114129. The next prime is 66215114219. The reversal of 66215114179 is 97141151266.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 66215114179 - 2⁹ = 66215113667 is a prime.

It is not a weakly prime, because it can be changed into another prime (66215114129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33107557089 + 33107557090.

It is an arithmetic number, because the mean of its divisors is an integer number (33107557090).

Almost surely, 2^66215114179 is an apocalyptic number.

66215114179 is a deficient number, since it is larger than the sum of its proper divisors (1).

66215114179 is an equidigital number, since it uses as much as digits as its factorization.

66215114179 is an evil number, because the sum of its binary digits is even.

The product of its digits is 90720, while the sum is 43.

The spelling of 66215114179 in words is "sixty-six billion, two hundred fifteen million, one hundred fourteen thousand, one hundred seventy-nine".