161234366 has 4 divisors (see below), whose sum is σ = 241851552. Its totient is φ = 80617182.

The previous prime is 161234351. The next prime is 161234383. The reversal of 161234366 is 663432161.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 663432161 = 7 ⋅94776023.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40308590 + ... + 40308593.

It is an arithmetic number, because the mean of its divisors is an integer number (60462888).

Almost surely, 2^161234366 is an apocalyptic number.

161234366 is a deficient number, since it is larger than the sum of its proper divisors (80617186).

161234366 is an equidigital number, since it uses as much as digits as its factorization.

161234366 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80617185.

The product of its digits is 15552, while the sum is 32.

The square root of 161234366 is about 12697.8094961296. The cubic root of 161234366 is about 544.2760254884.

The spelling of 161234366 in words is "one hundred sixty-one million, two hundred thirty-four thousand, three hundred sixty-six".