262440668020 has 12 divisors (see below), whose sum is σ = 551125402884. Its totient is φ = 104976267200.

The previous prime is 262440668011. The next prime is 262440668033. The reversal of 262440668020 is 20866044262.

It can be written as a sum of positive squares in 2 ways, for example, as 52055160336 + 210385507684 = 228156^2 + 458678^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6561016681 + ... + 6561016720.

It is an arithmetic number, because the mean of its divisors is an integer number (45927116907).

Almost surely, 2^262440668020 is an apocalyptic number.

262440668020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

262440668020 is an abundant number, since it is smaller than the sum of its proper divisors (288684734864).

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

262440668020 is a wasteful number, since it uses less digits than its factorization.

262440668020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13122033410 (or 13122033408 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 40.

The spelling of 262440668020 in words is "two hundred sixty-two billion, four hundred forty million, six hundred sixty-eight thousand, twenty".