266590713240 has 128 divisors (see below), whose sum is σ = 896788728000. Its totient is φ = 70438616064.

The previous prime is 266590713229. The next prime is 266590713253. The reversal of 266590713240 is 42317095662.

266590713240 is a `hidden beast` number, since 2 + 6 + 6 + 590 + 7 + 13 + 2 + 40 = 666.

It is a super-2 number, since 2×266590713240² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1014589 + ... + 1250028.

Almost surely, 2^266590713240 is an apocalyptic number.

266590713240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

266590713240 is an abundant number, since it is smaller than the sum of its proper divisors (630198014760).

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

266590713240 is a wasteful number, since it uses less digits than its factorization.

266590713240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2264746 (or 2264736 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 45.

The spelling of 266590713240 in words is "two hundred sixty-six billion, five hundred ninety million, seven hundred thirteen thousand, two hundred forty".