64600222277 has 2 divisors, whose sum is σ = 64600222278. Its totient is φ = 64600222276.

The previous prime is 64600222231. The next prime is 64600222283. The reversal of 64600222277 is 77222200646.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 47105927521 + 17494294756 = 217039^2 + 132266^2 .

It is a cyclic number.

It is not a de Polignac number, because 64600222277 - 2¹² = 64600218181 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 64600222277.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64600122277) 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, 32300111138 + 32300111139.

It is an arithmetic number, because the mean of its divisors is an integer number (32300111139).

Almost surely, 2^64600222277 is an apocalyptic number.

It is an amenable number.

64600222277 is a deficient number, since it is larger than the sum of its proper divisors (1).

64600222277 is an equidigital number, since it uses as much as digits as its factorization.

64600222277 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 112896, while the sum is 38.

The spelling of 64600222277 in words is "sixty-four billion, six hundred million, two hundred twenty-two thousand, two hundred seventy-seven".