266660624480 has 48 divisors (see below), whose sum is σ = 630070176960. Its totient is φ = 106649951232.

The previous prime is 266660624473. The next prime is 266660624537. The reversal of 266660624480 is 84426066662.

It is a super-2 number, since 2×266660624480² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 1128476 + ... + 1344164.

It is an arithmetic number, because the mean of its divisors is an integer number (13126462020).

Almost surely, 2^266660624480 is an apocalyptic number.

266660624480 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

266660624480 is an abundant number, since it is smaller than the sum of its proper divisors (363409552480).

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

266660624480 is a wasteful number, since it uses less digits than its factorization.

266660624480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 223431 (or 223423 counting only the distinct ones).

The product of its (nonzero) digits is 3981312, while the sum is 50.

The spelling of 266660624480 in words is "two hundred sixty-six billion, six hundred sixty million, six hundred twenty-four thousand, four hundred eighty".