64416794228641 has 2 divisors, whose sum is σ = 64416794228642. Its totient is φ = 64416794228640.

The previous prime is 64416794228603. The next prime is 64416794228651. The reversal of 64416794228641 is 14682249761446.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 64339585270416 + 77208958225 = 8021196^2 + 277865^2 .

It is a cyclic number.

It is not a de Polignac number, because 64416794228641 - 2⁷ = 64416794228513 is a prime.

It is not a weakly prime, because it can be changed into another prime (64416794228651) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32208397114320 + 32208397114321.

It is an arithmetic number, because the mean of its divisors is an integer number (32208397114321).

Almost surely, 2^{64416794228641} is an apocalyptic number.

It is an amenable number.

64416794228641 is a deficient number, since it is larger than the sum of its proper divisors (1).

64416794228641 is an equidigital number, since it uses as much as digits as its factorization.

64416794228641 is an evil number, because the sum of its binary digits is even.

The product of its digits is 111476736, while the sum is 64.

The spelling of 64416794228641 in words is "sixty-four trillion, four hundred sixteen billion, seven hundred ninety-four million, two hundred twenty-eight thousand, six hundred forty-one".