64420144102441 has 2 divisors, whose sum is σ = 64420144102442. Its totient is φ = 64420144102440.

The previous prime is 64420144102411. The next prime is 64420144102459. The reversal of 64420144102441 is 14420144102446.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 38012107836816 + 26408036265625 = 6165396^2 + 5138875^2 .

It is a cyclic number.

It is not a de Polignac number, because 64420144102441 - 2⁵ = 64420144102409 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 64420144102441.

It is not a weakly prime, because it can be changed into another prime (64420144102411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32210072051220 + 32210072051221.

It is an arithmetic number, because the mean of its divisors is an integer number (32210072051221).

Almost surely, 2^{64420144102441} is an apocalyptic number.

It is an amenable number.

64420144102441 is a deficient number, since it is larger than the sum of its proper divisors (1).

64420144102441 is an equidigital number, since it uses as much as digits as its factorization.

64420144102441 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 98304, while the sum is 37.

Adding to 64420144102441 its reverse (14420144102446), we get a palindrome (78840288204887).

The spelling of 64420144102441 in words is "sixty-four trillion, four hundred twenty billion, one hundred forty-four million, one hundred two thousand, four hundred forty-one".