159914809777 has 2 divisors, whose sum is σ = 159914809778. Its totient is φ = 159914809776.

The previous prime is 159914809753. The next prime is 159914809787. The reversal of 159914809777 is 777908419951.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 92873172001 + 67041637776 = 304751^2 + 258924^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-159914809777 is a prime.

It is not a weakly prime, because it can be changed into another prime (159914809787) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79957404888 + 79957404889.

It is an arithmetic number, because the mean of its divisors is an integer number (79957404889).

Almost surely, 2^159914809777 is an apocalyptic number.

It is an amenable number.

159914809777 is a deficient number, since it is larger than the sum of its proper divisors (1).

159914809777 is an equidigital number, since it uses as much as digits as its factorization.

159914809777 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 40007520, while the sum is 67.

The spelling of 159914809777 in words is "one hundred fifty-nine billion, nine hundred fourteen million, eight hundred nine thousand, seven hundred seventy-seven".