161015727463 has 2 divisors, whose sum is σ = 161015727464. Its totient is φ = 161015727462.

The previous prime is 161015727461. The next prime is 161015727569. The reversal of 161015727463 is 364727510161.

161015727463 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 161015727463 - 2¹ = 161015727461 is a prime.

Together with 161015727461, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (161015727461) 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, 80507863731 + 80507863732.

It is an arithmetic number, because the mean of its divisors is an integer number (80507863732).

Almost surely, 2^161015727463 is an apocalyptic number.

161015727463 is a deficient number, since it is larger than the sum of its proper divisors (1).

161015727463 is an equidigital number, since it uses as much as digits as its factorization.

161015727463 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 211680, while the sum is 43.

The spelling of 161015727463 in words is "one hundred sixty-one billion, fifteen million, seven hundred twenty-seven thousand, four hundred sixty-three".