63144160591 has 2 divisors, whose sum is σ = 63144160592. Its totient is φ = 63144160590.

The previous prime is 63144160567. The next prime is 63144160631. The reversal of 63144160591 is 19506144136.

It is an a-pointer prime, because the next prime (63144160631) can be obtained adding 63144160591 to its sum of digits (40).

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-63144160591 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (63144160991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31572080295 + 31572080296.

It is an arithmetic number, because the mean of its divisors is an integer number (31572080296).

Almost surely, 2^63144160591 is an apocalyptic number.

63144160591 is a deficient number, since it is larger than the sum of its proper divisors (1).

63144160591 is an equidigital number, since it uses as much as digits as its factorization.

63144160591 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 77760, while the sum is 40.

The spelling of 63144160591 in words is "sixty-three billion, one hundred forty-four million, one hundred sixty thousand, five hundred ninety-one".