263331116466 has 64 divisors (see below), whose sum is σ = 585036103680. Its totient is φ = 78352565760.

The previous prime is 263331116459. The next prime is 263331116497. The reversal of 263331116466 is 664611133362.

263331116466 is digitally balanced in base 7, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 651115 + ... + 974993.

It is an arithmetic number, because the mean of its divisors is an integer number (9141189120).

Almost surely, 2^263331116466 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 263331116466, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (292518051840).

263331116466 is an abundant number, since it is smaller than the sum of its proper divisors (321704987214).

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

263331116466 is a wasteful number, since it uses less digits than its factorization.

263331116466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 324119.

The product of its digits is 279936, while the sum is 42.

The spelling of 263331116466 in words is "two hundred sixty-three billion, three hundred thirty-one million, one hundred sixteen thousand, four hundred sixty-six".