66145836179 has 2 divisors, whose sum is σ = 66145836180. Its totient is φ = 66145836178.

The previous prime is 66145836173. The next prime is 66145836191. The reversal of 66145836179 is 97163854166.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 66145836179 - 2¹⁶ = 66145770643 is a prime.

It is not a weakly prime, because it can be changed into another prime (66145836173) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33072918089 + 33072918090.

It is an arithmetic number, because the mean of its divisors is an integer number (33072918090).

Almost surely, 2^66145836179 is an apocalyptic number.

66145836179 is a deficient number, since it is larger than the sum of its proper divisors (1).

66145836179 is an equidigital number, since it uses as much as digits as its factorization.

66145836179 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6531840, while the sum is 56.

The spelling of 66145836179 in words is "sixty-six billion, one hundred forty-five million, eight hundred thirty-six thousand, one hundred seventy-nine".