161082266 has 16 divisors (see below), whose sum is σ = 255494400. Its totient is φ = 75955968.

The previous prime is 161082241. The next prime is 161082277. The reversal of 161082266 is 662280161.

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, 1031 + ... + 17978.

It is an arithmetic number, because the mean of its divisors is an integer number (15968400).

Almost surely, 2^161082266 is an apocalyptic number.

161082266 is a deficient number, since it is larger than the sum of its proper divisors (94412134).

161082266 is a wasteful number, since it uses less digits than its factorization.

161082266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19253.

The product of its (nonzero) digits is 6912, while the sum is 32.

The square root of 161082266 is about 12691.8188609828. The cubic root of 161082266 is about 544.1048245410.

The spelling of 161082266 in words is "one hundred sixty-one million, eighty-two thousand, two hundred sixty-six".