64466573818357 has 2 divisors, whose sum is σ = 64466573818358. Its totient is φ = 64466573818356.

The previous prime is 64466573818331. The next prime is 64466573818489. The reversal of 64466573818357 is 75381837566446.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 64466109588241 + 464230116 = 8029079^2 + 21546^2 .

It is a cyclic number.

It is not a de Polignac number, because 64466573818357 - 2¹⁹ = 64466573294069 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 64466573818357.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64466573818957) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32233286909178 + 32233286909179.

It is an arithmetic number, because the mean of its divisors is an integer number (32233286909179).

Almost surely, 2^{64466573818357} is an apocalyptic number.

It is an amenable number.

64466573818357 is a deficient number, since it is larger than the sum of its proper divisors (1).

64466573818357 is an equidigital number, since it uses as much as digits as its factorization.

64466573818357 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2438553600, while the sum is 73.

The spelling of 64466573818357 in words is "sixty-four trillion, four hundred sixty-six billion, five hundred seventy-three million, eight hundred eighteen thousand, three hundred fifty-seven".