641066510150543 has 2 divisors, whose sum is σ = 641066510150544. Its totient is φ = 641066510150542.

The previous prime is 641066510150531. The next prime is 641066510150551. The reversal of 641066510150543 is 345051015660146.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-641066510150543 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (641066510150503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 320533255075271 + 320533255075272.

It is an arithmetic number, because the mean of its divisors is an integer number (320533255075272).

Almost surely, 2^{641066510150543} is an apocalyptic number.

641066510150543 is a deficient number, since it is larger than the sum of its proper divisors (1).

641066510150543 is an equidigital number, since it uses as much as digits as its factorization.

641066510150543 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296000, while the sum is 47.

The spelling of 641066510150543 in words is "six hundred forty-one trillion, sixty-six billion, five hundred ten million, one hundred fifty thousand, five hundred forty-three".