11266385520 has 320 divisors, whose sum is σ = 40011439104. Its totient is φ = 2597928960.

The previous prime is 11266385509. The next prime is 11266385539. The reversal of 11266385520 is 2558366211.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 16495099 + ... + 16495781.

Almost surely, 2^11266385520 is an apocalyptic number.

11266385520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11266385520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20005719552).

11266385520 is an abundant number, since it is smaller than the sum of its proper divisors (28745053584).

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

11266385520 is a wasteful number, since it uses less digits than its factorization.

11266385520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1040 (or 1034 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 39.

The spelling of 11266385520 in words is "eleven billion, two hundred sixty-six million, three hundred eighty-five thousand, five hundred twenty".