266255564480 has 28 divisors (see below), whose sum is σ = 634021063680. Its totient is φ = 106502225664.

The previous prime is 266255564441. The next prime is 266255564489. The reversal of 266255564480 is 84465552662.

It is not an unprimeable number, because it can be changed into a prime (266255564489) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 416024000 + ... + 416024639.

Almost surely, 2^266255564480 is an apocalyptic number.

266255564480 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

266255564480 is an abundant number, since it is smaller than the sum of its proper divisors (367765499200).

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

266255564480 is an equidigital number, since it uses as much as digits as its factorization.

266255564480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 832048656 (or 832048646 counting only the distinct ones).

The product of its (nonzero) digits is 13824000, while the sum is 53.

The spelling of 266255564480 in words is "two hundred sixty-six billion, two hundred fifty-five million, five hundred sixty-four thousand, four hundred eighty".