66834486707 has 2 divisors, whose sum is σ = 66834486708. Its totient is φ = 66834486706.

The previous prime is 66834486689. The next prime is 66834486767. The reversal of 66834486707 is 70768443866.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 66834486707 - 2⁶ = 66834486643 is a prime.

It is a super-2 number, since 2×66834486707² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (66834486767) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33417243353 + 33417243354.

It is an arithmetic number, because the mean of its divisors is an integer number (33417243354).

Almost surely, 2^66834486707 is an apocalyptic number.

66834486707 is a deficient number, since it is larger than the sum of its proper divisors (1).

66834486707 is an equidigital number, since it uses as much as digits as its factorization.

66834486707 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32514048, while the sum is 59.

The spelling of 66834486707 in words is "sixty-six billion, eight hundred thirty-four million, four hundred eighty-six thousand, seven hundred seven".