159765922961 has 2 divisors, whose sum is σ = 159765922962. Its totient is φ = 159765922960.

The previous prime is 159765922933. The next prime is 159765922993. The reversal of 159765922961 is 169229567951.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 158468482561 + 1297440400 = 398081^2 + 36020^2 .

It is a cyclic number.

It is not a de Polignac number, because 159765922961 - 2¹⁰ = 159765921937 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 159765922894 and 159765922903.

It is not a weakly prime, because it can be changed into another prime (159765922061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79882961480 + 79882961481.

It is an arithmetic number, because the mean of its divisors is an integer number (79882961481).

Almost surely, 2^159765922961 is an apocalyptic number.

It is an amenable number.

159765922961 is a deficient number, since it is larger than the sum of its proper divisors (1).

159765922961 is an equidigital number, since it uses as much as digits as its factorization.

159765922961 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 18370800, while the sum is 62.

The spelling of 159765922961 in words is "one hundred fifty-nine billion, seven hundred sixty-five million, nine hundred twenty-two thousand, nine hundred sixty-one".