263016530020 has 24 divisors (see below), whose sum is σ = 552344902200. Its totient is φ = 105204671232.

The previous prime is 263016530009. The next prime is 263016530041. The reversal of 263016530020 is 20035610362.

It can be written as a sum of positive squares in 4 ways, for example, as 15991625764 + 247024904256 = 126458^2 + 497016^2 .

It is a super-2 number, since 2×263016530020² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1554966 + ... + 1715794.

It is an arithmetic number, because the mean of its divisors is an integer number (23014370925).

Almost surely, 2^263016530020 is an apocalyptic number.

263016530020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

263016530020 is an abundant number, since it is smaller than the sum of its proper divisors (289328372180).

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

263016530020 is a wasteful number, since it uses less digits than its factorization.

263016530020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 242607 (or 242605 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 28.

The spelling of 263016530020 in words is "two hundred sixty-three billion, sixteen million, five hundred thirty thousand, twenty".