161527888992539 has 2 divisors, whose sum is σ = 161527888992540. Its totient is φ = 161527888992538.

The previous prime is 161527888992469. The next prime is 161527888992557. The reversal of 161527888992539 is 935299888725161.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 161527888992539 - 2²⁰ = 161527887943963 is a prime.

It is not a weakly prime, because it can be changed into another prime (161527888992559) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80763944496269 + 80763944496270.

It is an arithmetic number, because the mean of its divisors is an integer number (80763944496270).

Almost surely, 2^{161527888992539} is an apocalyptic number.

161527888992539 is a deficient number, since it is larger than the sum of its proper divisors (1).

161527888992539 is an equidigital number, since it uses as much as digits as its factorization.

161527888992539 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4702924800, while the sum is 83.

The spelling of 161527888992539 in words is "one hundred sixty-one trillion, five hundred twenty-seven billion, eight hundred eighty-eight million, nine hundred ninety-two thousand, five hundred thirty-nine".