66124081207 has 2 divisors, whose sum is σ = 66124081208. Its totient is φ = 66124081206.

The previous prime is 66124081189. The next prime is 66124081217. The reversal of 66124081207 is 70218042166.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 66124081207 - 2¹⁵ = 66124048439 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (66124081217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33062040603 + 33062040604.

It is an arithmetic number, because the mean of its divisors is an integer number (33062040604).

Almost surely, 2^66124081207 is an apocalyptic number.

66124081207 is a deficient number, since it is larger than the sum of its proper divisors (1).

66124081207 is an equidigital number, since it uses as much as digits as its factorization.

66124081207 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32256, while the sum is 37.

The spelling of 66124081207 in words is "sixty-six billion, one hundred twenty-four million, eighty-one thousand, two hundred seven".