170961576913 has 2 divisors, whose sum is σ = 170961576914. Its totient is φ = 170961576912.

The previous prime is 170961576901. The next prime is 170961576931. The reversal of 170961576913 is 319675169071.

Together with next prime (170961576931) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 94502137744 + 76459439169 = 307412^2 + 276513^2 .

It is a cyclic number.

It is not a de Polignac number, because 170961576913 - 2¹⁷ = 170961445841 is a prime.

It is a super-2 number, since 2×170961576913² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (170961576113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 85480788456 + 85480788457.

It is an arithmetic number, because the mean of its divisors is an integer number (85480788457).

Almost surely, 2^170961576913 is an apocalyptic number.

It is an amenable number.

170961576913 is a deficient number, since it is larger than the sum of its proper divisors (1).

170961576913 is an equidigital number, since it uses as much as digits as its factorization.

170961576913 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2143260, while the sum is 55.

The spelling of 170961576913 in words is "one hundred seventy billion, nine hundred sixty-one million, five hundred seventy-six thousand, nine hundred thirteen".