64704233663 has 2 divisors, whose sum is σ = 64704233664. Its totient is φ = 64704233662.

The previous prime is 64704233653. The next prime is 64704233669. The reversal of 64704233663 is 36633240746.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 64704233663 - 2¹⁰ = 64704232639 is a prime.

It is a super-2 number, since 2×64704233663² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64704233669) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32352116831 + 32352116832.

It is an arithmetic number, because the mean of its divisors is an integer number (32352116832).

Almost surely, 2^64704233663 is an apocalyptic number.

64704233663 is a deficient number, since it is larger than the sum of its proper divisors (1).

64704233663 is an equidigital number, since it uses as much as digits as its factorization.

64704233663 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1306368, while the sum is 44.

The spelling of 64704233663 in words is "sixty-four billion, seven hundred four million, two hundred thirty-three thousand, six hundred sixty-three".