161088266 has 8 divisors (see below), whose sum is σ = 243849540. Its totient is φ = 79805088.

The previous prime is 161088241. The next prime is 161088271. The reversal of 161088266 is 662880161.

It can be written as a sum of positive squares in 2 ways, for example, as 156375025 + 4713241 = 12505^2 + 2171^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 369251 + ... + 369686.

Almost surely, 2^161088266 is an apocalyptic number.

161088266 is a deficient number, since it is larger than the sum of its proper divisors (82761274).

161088266 is a wasteful number, since it uses less digits than its factorization.

161088266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 739048.

The product of its (nonzero) digits is 27648, while the sum is 38.

The square root of 161088266 is about 12692.0552315218. The cubic root of 161088266 is about 544.1115800714. Note that the first 3 decimals are identical.

The spelling of 161088266 in words is "one hundred sixty-one million, eighty-eight thousand, two hundred sixty-six".