161536266 has 24 divisors (see below), whose sum is σ = 350459460. Its totient is φ = 53774016.

The previous prime is 161536237. The next prime is 161536267. The reversal of 161536266 is 662635161.

161536266 is a `hidden beast` number, since 1 + 61 + 536 + 2 + 66 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 137241225 + 24295041 = 11715^2 + 4929^2 .

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 161536266.

It is not an unprimeable number, because it can be changed into a prime (161536267) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9016 + ... + 20108.

Almost surely, 2^161536266 is an apocalyptic number.

161536266 is an abundant number, since it is smaller than the sum of its proper divisors (188923194).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

161536266 is a wasteful number, since it uses less digits than its factorization.

161536266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11910 (or 11907 counting only the distinct ones).

The product of its digits is 38880, while the sum is 36.

The square root of 161536266 is about 12709.6918137302. The cubic root of 161536266 is about 544.6155198642.

The spelling of 161536266 in words is "one hundred sixty-one million, five hundred thirty-six thousand, two hundred sixty-six".