64366306373 has 2 divisors, whose sum is σ = 64366306374. Its totient is φ = 64366306372.

The previous prime is 64366306343. The next prime is 64366306379. The reversal of 64366306373 is 37360366346.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 64223216929 + 143089444 = 253423^2 + 11962^2 .

It is a cyclic number.

It is not a de Polignac number, because 64366306373 - 2²⁸ = 64097870917 is a prime.

It is a super-2 number, since 2×64366306373² (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 (64366306379) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32183153186 + 32183153187.

It is an arithmetic number, because the mean of its divisors is an integer number (32183153187).

Almost surely, 2^64366306373 is an apocalyptic number.

It is an amenable number.

64366306373 is a deficient number, since it is larger than the sum of its proper divisors (1).

64366306373 is an equidigital number, since it uses as much as digits as its factorization.

64366306373 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2939328, while the sum is 47.

The spelling of 64366306373 in words is "sixty-four billion, three hundred sixty-six million, three hundred six thousand, three hundred seventy-three".