266410444420 has 48 divisors (see below), whose sum is σ = 565871367600. Its totient is φ = 105343856640.

The previous prime is 266410444411. The next prime is 266410444457. The reversal of 266410444420 is 24444014662.

It can be written as a sum of positive squares in 8 ways, for example, as 50564717956 + 215845726464 = 224866^2 + 464592^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 266410444420.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9813826 + ... + 9840934.

It is an arithmetic number, because the mean of its divisors is an integer number (11788986825).

Almost surely, 2^266410444420 is an apocalyptic number.

266410444420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

266410444420 is an abundant number, since it is smaller than the sum of its proper divisors (299460923180).

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

266410444420 is a wasteful number, since it uses less digits than its factorization.

266410444420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32728 (or 32726 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 37.

The spelling of 266410444420 in words is "two hundred sixty-six billion, four hundred ten million, four hundred forty-four thousand, four hundred twenty".