160991841 has 8 divisors (see below), whose sum is σ = 215941824. Its totient is φ = 106684880.

The previous prime is 160991827. The next prime is 160991849. The reversal of 160991841 is 148199061.

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

It is a cyclic number.

It is not a de Polignac number, because 160991841 - 2⁶ = 160991777 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 160991841.

It is not an unprimeable number, because it can be changed into a prime (160991849) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 160170 + ... + 161171.

It is an arithmetic number, because the mean of its divisors is an integer number (26992728).

Almost surely, 2^160991841 is an apocalyptic number.

It is an amenable number.

160991841 is a deficient number, since it is larger than the sum of its proper divisors (54949983).

160991841 is a wasteful number, since it uses less digits than its factorization.

160991841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 321511.

The product of its (nonzero) digits is 15552, while the sum is 39.

The square root of 160991841 is about 12688.2560267359. The cubic root of 160991841 is about 544.0029927477.

The spelling of 160991841 in words is "one hundred sixty million, nine hundred ninety-one thousand, eight hundred forty-one".