170017036661 has 2 divisors, whose sum is σ = 170017036662. Its totient is φ = 170017036660.

The previous prime is 170017036627. The next prime is 170017036723. The reversal of 170017036661 is 166630710071.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 155783353636 + 14233683025 = 394694^2 + 119305^2 .

It is a cyclic number.

It is not a de Polignac number, because 170017036661 - 2⁶ = 170017036597 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (170017026661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 85008518330 + 85008518331.

It is an arithmetic number, because the mean of its divisors is an integer number (85008518331).

Almost surely, 2^170017036661 is an apocalyptic number.

It is an amenable number.

170017036661 is a deficient number, since it is larger than the sum of its proper divisors (1).

170017036661 is an equidigital number, since it uses as much as digits as its factorization.

170017036661 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 31752, while the sum is 38.

The spelling of 170017036661 in words is "one hundred seventy billion, seventeen million, thirty-six thousand, six hundred sixty-one".