263161612 has 48 divisors (see below), whose sum is σ = 542767680. Its totient is φ = 109285632.

The previous prime is 263161603. The next prime is 263161663. The reversal of 263161612 is 216161362.

263161612 is digitally balanced in base 3, 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 (28).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 402678 + ... + 403330.

It is an arithmetic number, because the mean of its divisors is an integer number (11307660).

Almost surely, 2^263161612 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 263161612, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (271383840).

263161612 is an abundant number, since it is smaller than the sum of its proper divisors (279606068).

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

263161612 is a wasteful number, since it uses less digits than its factorization.

263161612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1090 (or 1088 counting only the distinct ones).

The product of its digits is 2592, while the sum is 28.

The square root of 263161612 is about 16222.2566864170. The cubic root of 263161612 is about 640.8270654969.

The spelling of 263161612 in words is "two hundred sixty-three million, one hundred sixty-one thousand, six hundred twelve".