56518169458963 has 2 divisors, whose sum is σ = 56518169458964. Its totient is φ = 56518169458962.

The previous prime is 56518169458879. The next prime is 56518169458967. The reversal of 56518169458963 is 36985496181565.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 56518169458963 - 2²¹ = 56518167361811 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 56518169458963.

It is not a weakly prime, because it can be changed into another prime (56518169458967) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28259084729481 + 28259084729482.

It is an arithmetic number, because the mean of its divisors is an integer number (28259084729482).

Almost surely, 2^{56518169458963} is an apocalyptic number.

56518169458963 is a deficient number, since it is larger than the sum of its proper divisors (1).

56518169458963 is an equidigital number, since it uses as much as digits as its factorization.

56518169458963 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1679616000, while the sum is 76.

The spelling of 56518169458963 in words is "fifty-six trillion, five hundred eighteen billion, one hundred sixty-nine million, four hundred fifty-eight thousand, nine hundred sixty-three".