161550466 has 32 divisors (see below), whose sum is σ = 307836288. Its totient is φ = 61751040.

The previous prime is 161550451. The next prime is 161550539. The reversal of 161550466 is 664055161.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1735 + ... + 18058.

It is an arithmetic number, because the mean of its divisors is an integer number (9619884).

Almost surely, 2^161550466 is an apocalyptic number.

161550466 is a deficient number, since it is larger than the sum of its proper divisors (146285822).

161550466 is a wasteful number, since it uses less digits than its factorization.

161550466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19866.

The product of its (nonzero) digits is 21600, while the sum is 34.

The square root of 161550466 is about 12710.2504302630. The cubic root of 161550466 is about 544.6314777127.

The spelling of 161550466 in words is "one hundred sixty-one million, five hundred fifty thousand, four hundred sixty-six".