163316240 has 40 divisors (see below), whose sum is σ = 383279040. Its totient is φ = 64712576.

The previous prime is 163316227. The next prime is 163316249. The reversal of 163316240 is 42613361.

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (163316249) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 980 + ... + 18099.

It is an arithmetic number, because the mean of its divisors is an integer number (9581976).

Almost surely, 2^163316240 is an apocalyptic number.

163316240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 163316240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (191639520).

163316240 is an abundant number, since it is smaller than the sum of its proper divisors (219962800).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

163316240 is a wasteful number, since it uses less digits than its factorization.

163316240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19199 (or 19193 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 26.

The square root of 163316240 is about 12779.5242477958. The cubic root of 163316240 is about 546.6085965153.

The spelling of 163316240 in words is "one hundred sixty-three million, three hundred sixteen thousand, two hundred forty".