100664604281 has 2 divisors, whose sum is σ = 100664604282. Its totient is φ = 100664604280.

The previous prime is 100664604203. The next prime is 100664604323. The reversal of 100664604281 is 182406466001.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 99640604281 + 1024000000 = 315659^2 + 32000^2 .

It is a cyclic number.

It is not a de Polignac number, because 100664604281 - 2¹⁴ = 100664587897 is a prime.

It is a super-2 number, since 2×100664604281² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (100664609281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50332302140 + 50332302141.

It is an arithmetic number, because the mean of its divisors is an integer number (50332302141).

Almost surely, 2^100664604281 is an apocalyptic number.

It is an amenable number.

100664604281 is a deficient number, since it is larger than the sum of its proper divisors (1).

100664604281 is an equidigital number, since it uses as much as digits as its factorization.

100664604281 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 55296, while the sum is 38.

The spelling of 100664604281 in words is "one hundred billion, six hundred sixty-four million, six hundred four thousand, two hundred eighty-one".