161274750563 has 2 divisors, whose sum is σ = 161274750564. Its totient is φ = 161274750562.

The previous prime is 161274750437. The next prime is 161274750577. The reversal of 161274750563 is 365057472161.

161274750563 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 161274750563 - 2²⁴ = 161257973347 is a prime.

It is not a weakly prime, because it can be changed into another prime (161274750583) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80637375281 + 80637375282.

It is an arithmetic number, because the mean of its divisors is an integer number (80637375282).

Almost surely, 2^161274750563 is an apocalyptic number.

161274750563 is a deficient number, since it is larger than the sum of its proper divisors (1).

161274750563 is an equidigital number, since it uses as much as digits as its factorization.

161274750563 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1058400, while the sum is 47.

The spelling of 161274750563 in words is "one hundred sixty-one billion, two hundred seventy-four million, seven hundred fifty thousand, five hundred sixty-three".