1564452140663 has 2 divisors, whose sum is σ = 1564452140664. Its totient is φ = 1564452140662.

The previous prime is 1564452140633. The next prime is 1564452140681. The reversal of 1564452140663 is 3660412544651.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1564452140663 - 2¹² = 1564452136567 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1564452140623) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 782226070331 + 782226070332.

It is an arithmetic number, because the mean of its divisors is an integer number (782226070332).

Almost surely, 2^{1564452140663} is an apocalyptic number.

1564452140663 is a deficient number, since it is larger than the sum of its proper divisors (1).

1564452140663 is an equidigital number, since it uses as much as digits as its factorization.

1564452140663 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2073600, while the sum is 47.

The spelling of 1564452140663 in words is "one trillion, five hundred sixty-four billion, four hundred fifty-two million, one hundred forty thousand, six hundred sixty-three".