171602270461 has 2 divisors, whose sum is σ = 171602270462. Its totient is φ = 171602270460.

The previous prime is 171602270447. The next prime is 171602270473. The reversal of 171602270461 is 164072206171.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 158240066436 + 13362204025 = 397794^2 + 115595^2 .

It is a cyclic number.

It is not a de Polignac number, because 171602270461 - 2¹¹ = 171602268413 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 171602270461.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (171602270431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 85801135230 + 85801135231.

It is an arithmetic number, because the mean of its divisors is an integer number (85801135231).

Almost surely, 2^171602270461 is an apocalyptic number.

It is an amenable number.

171602270461 is a deficient number, since it is larger than the sum of its proper divisors (1).

171602270461 is an equidigital number, since it uses as much as digits as its factorization.

171602270461 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 28224, while the sum is 37.

The spelling of 171602270461 in words is "one hundred seventy-one billion, six hundred two million, two hundred seventy thousand, four hundred sixty-one".