163604364 has 96 divisors (see below), whose sum is σ = 501043200. Its totient is φ = 40253760.

The previous prime is 163604347. The next prime is 163604387. The reversal of 163604364 is 463406361.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12897 + ... + 22215.

It is an arithmetic number, because the mean of its divisors is an integer number (5219200).

Almost surely, 2^163604364 is an apocalyptic number.

163604364 is a gapful number since it is divisible by the number (14) 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 163604364, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (250521600).

163604364 is an abundant number, since it is smaller than the sum of its proper divisors (337438836).

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

163604364 is a wasteful number, since it uses less digits than its factorization.

163604364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9363 (or 9361 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 33.

The square root of 163604364 is about 12790.7921568603. The cubic root of 163604364 is about 546.9298516258.

The spelling of 163604364 in words is "one hundred sixty-three million, six hundred four thousand, three hundred sixty-four".