161124521659 has 2 divisors, whose sum is σ = 161124521660. Its totient is φ = 161124521658.

The previous prime is 161124521627. The next prime is 161124521683. The reversal of 161124521659 is 956125421161.

161124521659 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 161124521659 - 2⁵ = 161124521627 is a prime.

It is a super-2 number, since 2×161124521659² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (161124522659) 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, 80562260829 + 80562260830.

It is an arithmetic number, because the mean of its divisors is an integer number (80562260830).

Almost surely, 2^161124521659 is an apocalyptic number.

161124521659 is a deficient number, since it is larger than the sum of its proper divisors (1).

161124521659 is an equidigital number, since it uses as much as digits as its factorization.

161124521659 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 129600, while the sum is 43.

The spelling of 161124521659 in words is "one hundred sixty-one billion, one hundred twenty-four million, five hundred twenty-one thousand, six hundred fifty-nine".