263143421116416 has 513 divisors, whose sum is σ = 777637836339091. Its totient is φ = 85746068226048.

The previous prime is 263143421116369. The next prime is 263143421116417. The reversal of 263143421116416 is 614611124341362.

The square root of 263143421116416 is 16221696.

It is a perfect power (a square), and thus also a powerful number.

263143421116416 is a `hidden beast` number, since 2 + 6 + 3 + 1 + 4 + 3 + 4 + 211 + 16 + 416 = 666.

It is a nude number because it is divisible by every one of its digits.

It is a Duffinian number.

Its product of digits (497664) is a multiple of the sum of its prime divisors (243).

It is not an unprimeable number, because it can be changed into a prime (263143421116417) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 1470074978215 + ... + 1470074978393.

Almost surely, 2^{263143421116416} is an apocalyptic number.

263143421116416 is the 16221696-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 263143421116416

263143421116416 is an abundant number, since it is smaller than the sum of its proper divisors (514494415222675).

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

263143421116416 is an frugal number, since it uses more digits than its factorization.

263143421116416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 518 (or 243 counting only the distinct ones).

The product of its digits is 497664, while the sum is 45.

Adding to 263143421116416 its reverse (614611124341362), we get a palindrome (877754545457778).

The spelling of 263143421116416 in words is "two hundred sixty-three trillion, one hundred forty-three billion, four hundred twenty-one million, one hundred sixteen thousand, four hundred sixteen".