161768000089706 has 16 divisors (see below), whose sum is σ = 242946652323240. Its totient is φ = 80785784214720.

The previous prime is 161768000089691. The next prime is 161768000089757. The reversal of 161768000089706 is 607980000867161.

It can be written as a sum of positive squares in 4 ways, for example, as 141563379637681 + 20204620452025 = 11898041^2 + 4494955^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 257905340 + ... + 258531816.

Almost surely, 2^{161768000089706} is an apocalyptic number.

161768000089706 is a deficient number, since it is larger than the sum of its proper divisors (81178652233534).

161768000089706 is a wasteful number, since it uses less digits than its factorization.

161768000089706 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 783049.

The product of its (nonzero) digits is 6096384, while the sum is 59.

The spelling of 161768000089706 in words is "one hundred sixty-one trillion, seven hundred sixty-eight billion, eighty-nine thousand, seven hundred six".