161847166 has 8 divisors (see below), whose sum is σ = 261445464. Its totient is φ = 74698680.

The previous prime is 161847151. The next prime is 161847181. The reversal of 161847166 is 661748161.

It is an interprime number because it is at equal distance from previous prime (161847151) and next prime (161847181).

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

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 in 3 ways as a sum of consecutive naturals, for example, 3112420 + ... + 3112471.

It is an arithmetic number, because the mean of its divisors is an integer number (32680683).

Almost surely, 2^161847166 is an apocalyptic number.

161847166 is a deficient number, since it is larger than the sum of its proper divisors (99598298).

161847166 is a wasteful number, since it uses less digits than its factorization.

161847166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6224906.

The product of its digits is 48384, while the sum is 40.

The square root of 161847166 is about 12721.9167580990. The cubic root of 161847166 is about 544.9646931649.

It can be divided in two parts, 1618 and 47166, that added together give a palindrome (48784).

The spelling of 161847166 in words is "one hundred sixty-one million, eight hundred forty-seven thousand, one hundred sixty-six".