66962428963 has 2 divisors, whose sum is σ = 66962428964. Its totient is φ = 66962428962.

The previous prime is 66962428921. The next prime is 66962428969. The reversal of 66962428963 is 36982426966.

66962428963 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 66962428963 - 2²⁵ = 66928874531 is a prime.

It is not a weakly prime, because it can be changed into another prime (66962428969) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33481214481 + 33481214482.

It is an arithmetic number, because the mean of its divisors is an integer number (33481214482).

Almost surely, 2^66962428963 is an apocalyptic number.

66962428963 is a deficient number, since it is larger than the sum of its proper divisors (1).

66962428963 is an equidigital number, since it uses as much as digits as its factorization.

66962428963 is an evil number, because the sum of its binary digits is even.

The product of its digits is 40310784, while the sum is 61.

The spelling of 66962428963 in words is "sixty-six billion, nine hundred sixty-two million, four hundred twenty-eight thousand, nine hundred sixty-three".