161288017453 has 2 divisors, whose sum is σ = 161288017454. Its totient is φ = 161288017452.

The previous prime is 161288017427. The next prime is 161288017469. The reversal of 161288017453 is 354710882161.

161288017453 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 can be written as a sum of positive squares in only one way, i.e., 96607829124 + 64680188329 = 310818^2 + 254323^2 .

It is a cyclic number.

It is not a de Polignac number, because 161288017453 - 2¹³ = 161288009261 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (161288014453) 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, 80644008726 + 80644008727.

It is an arithmetic number, because the mean of its divisors is an integer number (80644008727).

Almost surely, 2^161288017453 is an apocalyptic number.

It is an amenable number.

161288017453 is a deficient number, since it is larger than the sum of its proper divisors (1).

161288017453 is an equidigital number, since it uses as much as digits as its factorization.

161288017453 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 322560, while the sum is 46.

The spelling of 161288017453 in words is "one hundred sixty-one billion, two hundred eighty-eight million, seventeen thousand, four hundred fifty-three".