161848766 has 16 divisors (see below), whose sum is σ = 244922400. Its totient is φ = 80211168.

The previous prime is 161848747. The next prime is 161848787. The reversal of 161848766 is 667848161.

It is a self number, because there is not a number n which added to its sum of digits gives 161848766.

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 7 ways as a sum of consecutive naturals, for example, 175655 + ... + 176573.

It is an arithmetic number, because the mean of its divisors is an integer number (15307650).

Almost surely, 2^161848766 is an apocalyptic number.

161848766 is a deficient number, since it is larger than the sum of its proper divisors (83073634).

161848766 is a wasteful number, since it uses less digits than its factorization.

161848766 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1603.

The product of its digits is 387072, while the sum is 47.

The square root of 161848766 is about 12721.9796415495. The cubic root of 161848766 is about 544.9664889756.

The spelling of 161848766 in words is "one hundred sixty-one million, eight hundred forty-eight thousand, seven hundred sixty-six".