163992500 has 60 divisors (see below), whose sum is σ = 409893792. Its totient is φ = 56220000.

The previous prime is 163992487. The next prime is 163992503. The reversal of 163992500 is 5299361.

163992500 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163992503) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 12815 + ... + 22185.

Almost surely, 2^163992500 is an apocalyptic number.

163992500 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 163992500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (204946896).

163992500 is an abundant number, since it is smaller than the sum of its proper divisors (245901292).

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

163992500 is an equidigital number, since it uses as much as digits as its factorization.

163992500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9402 (or 9385 counting only the distinct ones).

The product of its (nonzero) digits is 14580, while the sum is 35.

The square root of 163992500 is about 12805.9556457142. The cubic root of 163992500 is about 547.3620232922.

The spelling of 163992500 in words is "one hundred sixty-three million, nine hundred ninety-two thousand, five hundred".