266030456643640 has 64 divisors (see below), whose sum is σ = 662034213358560. Its totient is φ = 95571856350720.

The previous prime is 266030456643587. The next prime is 266030456643649. The reversal of 266030456643640 is 46346654030662.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (266030456643649) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6913454166 + ... + 6913492645.

Almost surely, 2^{266030456643640} is an apocalyptic number.

266030456643640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

266030456643640 is an abundant number, since it is smaller than the sum of its proper divisors (396003756714920).

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

266030456643640 is a wasteful number, since it uses less digits than its factorization.

266030456643640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13826946872 (or 13826946868 counting only the distinct ones).

The product of its (nonzero) digits is 44789760, while the sum is 55.

The spelling of 266030456643640 in words is "two hundred sixty-six trillion, thirty billion, four hundred fifty-six million, six hundred forty-three thousand, six hundred forty".