159964420177 has 2 divisors, whose sum is σ = 159964420178. Its totient is φ = 159964420176.

The previous prime is 159964420129. The next prime is 159964420211. The reversal of 159964420177 is 771024469951.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 149998191616 + 9966228561 = 387296^2 + 99831^2 .

It is a cyclic number.

It is not a de Polignac number, because 159964420177 - 2¹¹ = 159964418129 is a prime.

It is a super-2 number, since 2×159964420177² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (159964420477) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79982210088 + 79982210089.

It is an arithmetic number, because the mean of its divisors is an integer number (79982210089).

Almost surely, 2^159964420177 is an apocalyptic number.

It is an amenable number.

159964420177 is a deficient number, since it is larger than the sum of its proper divisors (1).

159964420177 is an equidigital number, since it uses as much as digits as its factorization.

159964420177 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3810240, while the sum is 55.

The spelling of 159964420177 in words is "one hundred fifty-nine billion, nine hundred sixty-four million, four hundred twenty thousand, one hundred seventy-seven".