163880445 has 8 divisors (see below), whose sum is σ = 262208736. Its totient is φ = 87402896.

The previous prime is 163880389. The next prime is 163880447. The reversal of 163880445 is 544088361.

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 163880445 - 2¹¹ = 163878397 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163880447) by changing a digit.

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, 5462667 + ... + 5462696.

It is an arithmetic number, because the mean of its divisors is an integer number (32776092).

Almost surely, 2^163880445 is an apocalyptic number.

163880445 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

163880445 is a deficient number, since it is larger than the sum of its proper divisors (98328291).

163880445 is a wasteful number, since it uses less digits than its factorization.

163880445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10925371.

The product of its (nonzero) digits is 92160, while the sum is 39.

The square root of 163880445 is about 12801.5797853234. The cubic root of 163880445 is about 547.2373252589.

The spelling of 163880445 in words is "one hundred sixty-three million, eight hundred eighty thousand, four hundred forty-five".