64663529233 has 2 divisors, whose sum is σ = 64663529234. Its totient is φ = 64663529232.

The previous prime is 64663529197. The next prime is 64663529251. The reversal of 64663529233 is 33292536646.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 48247001104 + 16416528129 = 219652^2 + 128127^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-64663529233 is a prime.

It is not a weakly prime, because it can be changed into another prime (64663529533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32331764616 + 32331764617.

It is an arithmetic number, because the mean of its divisors is an integer number (32331764617).

Almost surely, 2^64663529233 is an apocalyptic number.

It is an amenable number.

64663529233 is a deficient number, since it is larger than the sum of its proper divisors (1).

64663529233 is an equidigital number, since it uses as much as digits as its factorization.

64663529233 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4199040, while the sum is 49.

The spelling of 64663529233 in words is "sixty-four billion, six hundred sixty-three million, five hundred twenty-nine thousand, two hundred thirty-three".