161060566 has 4 divisors (see below), whose sum is σ = 241590852. Its totient is φ = 80530282.

The previous prime is 161060561. The next prime is 161060591. The reversal of 161060566 is 665060161.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 665060161 = 29 ⋅22933109.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161060561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40265140 + ... + 40265143.

It is an arithmetic number, because the mean of its divisors is an integer number (60397713).

Almost surely, 2^161060566 is an apocalyptic number.

161060566 is a deficient number, since it is larger than the sum of its proper divisors (80530286).

161060566 is an equidigital number, since it uses as much as digits as its factorization.

161060566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80530285.

The product of its (nonzero) digits is 6480, while the sum is 31.

The square root of 161060566 is about 12690.9639507801. The cubic root of 161060566 is about 544.0803906390.

The spelling of 161060566 in words is "one hundred sixty-one million, sixty thousand, five hundred sixty-six".