159931684097 has 2 divisors, whose sum is σ = 159931684098. Its totient is φ = 159931684096.

The previous prime is 159931684069. The next prime is 159931684127. The reversal of 159931684097 is 790486139951.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 87184963441 + 72746720656 = 295271^2 + 269716^2 .

It is a cyclic number.

It is not a de Polignac number, because 159931684097 - 2¹⁰ = 159931683073 is a prime.

It is not a weakly prime, because it can be changed into another prime (159931644097) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79965842048 + 79965842049.

It is an arithmetic number, because the mean of its divisors is an integer number (79965842049).

Almost surely, 2^159931684097 is an apocalyptic number.

It is an amenable number.

159931684097 is a deficient number, since it is larger than the sum of its proper divisors (1).

159931684097 is an equidigital number, since it uses as much as digits as its factorization.

159931684097 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14696640, while the sum is 62.

The spelling of 159931684097 in words is "one hundred fifty-nine billion, nine hundred thirty-one million, six hundred eighty-four thousand, ninety-seven".