163540330 has 32 divisors (see below), whose sum is σ = 302227200. Its totient is φ = 63692352.

The previous prime is 163540319. The next prime is 163540331. The reversal of 163540330 is 33045361.

It is a junction number, because it is equal to n+sod(n) for n = 163540295 and 163540304.

It is not an unprimeable number, because it can be changed into a prime (163540331) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 63039 + ... + 65581.

It is an arithmetic number, because the mean of its divisors is an integer number (9444600).

Almost surely, 2^163540330 is an apocalyptic number.

163540330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

163540330 is a deficient number, since it is larger than the sum of its proper divisors (138686870).

163540330 is a wasteful number, since it uses less digits than its factorization.

163540330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2718.

The product of its (nonzero) digits is 3240, while the sum is 25.

The square root of 163540330 is about 12788.2887831015. The cubic root of 163540330 is about 546.8584870334.

Adding to 163540330 its reverse (33045361), we get a palindrome (196585691).

The spelling of 163540330 in words is "one hundred sixty-three million, five hundred forty thousand, three hundred thirty".