163613420 has 12 divisors (see below), whose sum is σ = 343588224. Its totient is φ = 65445360.

The previous prime is 163613419. The next prime is 163613449. The reversal of 163613420 is 24316361.

It is a self number, because there is not a number n which added to its sum of digits gives 163613420.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4090316 + ... + 4090355.

It is an arithmetic number, because the mean of its divisors is an integer number (28632352).

Almost surely, 2^163613420 is an apocalyptic number.

163613420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

163613420 is an abundant number, since it is smaller than the sum of its proper divisors (179974804).

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

163613420 is a wasteful number, since it uses less digits than its factorization.

163613420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8180680 (or 8180678 counting only the distinct ones).

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

The square root of 163613420 is about 12791.1461566194. The cubic root of 163613420 is about 546.9399428508.

Adding to 163613420 its reverse (24316361), we get a palindrome (187929781).

The spelling of 163613420 in words is "one hundred sixty-three million, six hundred thirteen thousand, four hundred twenty".