866570672143963 has 2 divisors, whose sum is σ = 866570672143964. Its totient is φ = 866570672143962.

The previous prime is 866570672143937. The next prime is 866570672144027. The reversal of 866570672143963 is 369341276075668.

866570672143963 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 866570672143963 - 2²¹ = 866570670046811 is a prime.

It is a super-2 number, since 2×866570672143963² (a number of 31 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (866570672143933) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 433285336071981 + 433285336071982.

It is an arithmetic number, because the mean of its divisors is an integer number (433285336071982).

It is a 1-persistent number, because it is pandigital, but 2⋅866570672143963 = 1733141344287926 is not.

Almost surely, 2^{866570672143963} is an apocalyptic number.

866570672143963 is a deficient number, since it is larger than the sum of its proper divisors (1).

866570672143963 is an equidigital number, since it uses as much as digits as its factorization.

866570672143963 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1646023680, while the sum is 73.

The spelling of 866570672143963 in words is "eight hundred sixty-six trillion, five hundred seventy billion, six hundred seventy-two million, one hundred forty-three thousand, nine hundred sixty-three".