161527888992529 has 16 divisors (see below), whose sum is σ = 163407168593280. Its totient is φ = 159654151641600.

The previous prime is 161527888992469. The next prime is 161527888992539. The reversal of 161527888992529 is 925299888725161.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-161527888992529 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (161527888992539) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 646133932 + ... + 646383874.

It is an arithmetic number, because the mean of its divisors is an integer number (10212948037080).

Almost surely, 2^{161527888992529} is an apocalyptic number.

It is an amenable number.

161527888992529 is a deficient number, since it is larger than the sum of its proper divisors (1879279600751).

161527888992529 is a wasteful number, since it uses less digits than its factorization.

161527888992529 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 261000.

The product of its digits is 3135283200, while the sum is 82.

The spelling of 161527888992529 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 twenty-nine".