171119758961 has 2 divisors, whose sum is σ = 171119758962. Its totient is φ = 171119758960.

The previous prime is 171119758921. The next prime is 171119758967. The reversal of 171119758961 is 169857911171.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 131700039025 + 39419719936 = 362905^2 + 198544^2 .

It is a cyclic number.

It is not a de Polignac number, because 171119758961 - 2¹⁸ = 171119496817 is a prime.

It is a super-3 number, since 3×171119758961³ (a number of 35 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 171119758897 and 171119758906.

It is not a weakly prime, because it can be changed into another prime (171119758967) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 85559879480 + 85559879481.

It is an arithmetic number, because the mean of its divisors is an integer number (85559879481).

Almost surely, 2^171119758961 is an apocalyptic number.

It is an amenable number.

171119758961 is a deficient number, since it is larger than the sum of its proper divisors (1).

171119758961 is an equidigital number, since it uses as much as digits as its factorization.

171119758961 is an evil number, because the sum of its binary digits is even.

The product of its digits is 952560, while the sum is 56.

The spelling of 171119758961 in words is "one hundred seventy-one billion, one hundred nineteen million, seven hundred fifty-eight thousand, nine hundred sixty-one".