64466488466461 has 2 divisors, whose sum is σ = 64466488466462. Its totient is φ = 64466488466460.

The previous prime is 64466488466399. The next prime is 64466488466537. The reversal of 64466488466461 is 16466488466446.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 60234766343236 + 4231722123225 = 7761106^2 + 2057115^2 .

It is a cyclic number.

It is not a de Polignac number, because 64466488466461 - 2⁴³ = 55670395444253 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64466488406461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32233244233230 + 32233244233231.

It is an arithmetic number, because the mean of its divisors is an integer number (32233244233231).

Almost surely, 2^{64466488466461} is an apocalyptic number.

It is an amenable number.

64466488466461 is a deficient number, since it is larger than the sum of its proper divisors (1).

64466488466461 is an equidigital number, since it uses as much as digits as its factorization.

64466488466461 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3057647616, while the sum is 73.

The spelling of 64466488466461 in words is "sixty-four trillion, four hundred sixty-six billion, four hundred eighty-eight million, four hundred sixty-six thousand, four hundred sixty-one".