163215040 has 28 divisors (see below), whose sum is σ = 388656576. Its totient is φ = 65285888.

The previous prime is 163215023. The next prime is 163215049. The reversal of 163215040 is 40512361.

163215040 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (163215049) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 254704 + ... + 255343.

It is an arithmetic number, because the mean of its divisors is an integer number (13880592).

Almost surely, 2^163215040 is an apocalyptic number.

163215040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

163215040 is an abundant number, since it is smaller than the sum of its proper divisors (225441536).

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

163215040 is an equidigital number, since it uses as much as digits as its factorization.

163215040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 510064 (or 510054 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 163215040 is about 12775.5641754092. The cubic root of 163215040 is about 546.4956699630.

The spelling of 163215040 in words is "one hundred sixty-three million, two hundred fifteen thousand, forty".