163320741 has 24 divisors (see below), whose sum is σ = 247180544. Its totient is φ = 103783680.

The previous prime is 163320727. The next prime is 163320757. The reversal of 163320741 is 147023361.

163320741 is a `hidden beast` number, since 1 + 633 + 20 + 7 + 4 + 1 = 666.

163320741 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 163320741 - 2²² = 159126437 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163320761) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14325 + ... + 23061.

Almost surely, 2^163320741 is an apocalyptic number.

It is an amenable number.

163320741 is a deficient number, since it is larger than the sum of its proper divisors (83859803).

163320741 is a wasteful number, since it uses less digits than its factorization.

163320741 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8841 (or 8838 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 27.

The square root of 163320741 is about 12779.7003485997. The cubic root of 163320741 is about 546.6136179850.

The spelling of 163320741 in words is "one hundred sixty-three million, three hundred twenty thousand, seven hundred forty-one".