263164104 has 144 divisors (see below), whose sum is σ = 838737900. Its totient is φ = 74317824.

The previous prime is 263164081. The next prime is 263164123. The reversal of 263164104 is 401461362.

It can be written as a sum of positive squares in 2 ways, for example, as 261468900 + 1695204 = 16170^2 + 1302^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 341832 + ... + 342600.

Almost surely, 2^263164104 is an apocalyptic number.

263164104 is a gapful number since it is divisible by the number (24) 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 263164104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (419368950).

263164104 is an abundant number, since it is smaller than the sum of its proper divisors (575573796).

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

263164104 is a wasteful number, since it uses less digits than its factorization.

263164104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 892 (or 878 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 263164104 is about 16222.3334942911. Note that the first 3 decimals coincide. The cubic root of 263164104 is about 640.8290882539.

The spelling of 263164104 in words is "two hundred sixty-three million, one hundred sixty-four thousand, one hundred four".