66707400707 has 2 divisors, whose sum is σ = 66707400708. Its totient is φ = 66707400706.

The previous prime is 66707400607. The next prime is 66707400757. The reversal of 66707400707 is 70700470766.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 66707400707 - 2⁸ = 66707400451 is a prime.

It is not a weakly prime, because it can be changed into another prime (66707400757) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33353700353 + 33353700354.

It is an arithmetic number, because the mean of its divisors is an integer number (33353700354).

Almost surely, 2^66707400707 is an apocalyptic number.

66707400707 is a deficient number, since it is larger than the sum of its proper divisors (1).

66707400707 is an equidigital number, since it uses as much as digits as its factorization.

66707400707 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 345744, while the sum is 44.

The spelling of 66707400707 in words is "sixty-six billion, seven hundred seven million, four hundred thousand, seven hundred seven".