66962474633 has 2 divisors, whose sum is σ = 66962474634. Its totient is φ = 66962474632.

The previous prime is 66962474591. The next prime is 66962474651. The reversal of 66962474633 is 33647426966.

66962474633 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 can be written as a sum of positive squares in only one way, i.e., 65018370169 + 1944104464 = 254987^2 + 44092^2 .

It is a cyclic number.

It is not a de Polignac number, because 66962474633 - 2²² = 66958280329 is a prime.

It is not a weakly prime, because it can be changed into another prime (66962474333) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33481237316 + 33481237317.

It is an arithmetic number, because the mean of its divisors is an integer number (33481237317).

Almost surely, 2^66962474633 is an apocalyptic number.

It is an amenable number.

66962474633 is a deficient number, since it is larger than the sum of its proper divisors (1).

66962474633 is an equidigital number, since it uses as much as digits as its factorization.

66962474633 is an evil number, because the sum of its binary digits is even.

The product of its digits is 23514624, while the sum is 56.

The spelling of 66962474633 in words is "sixty-six billion, nine hundred sixty-two million, four hundred seventy-four thousand, six hundred thirty-three".