11302778880 has 240 divisors, whose sum is σ = 40515635160. Its totient is φ = 3013853184.

The previous prime is 11302778873. The next prime is 11302778891. The reversal of 11302778880 is 8887720311.

It is a tau number, because it is divible by the number of its divisors (240).

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 19 ways as a sum of consecutive naturals, for example, 822627 + ... + 836253.

Almost surely, 2^11302778880 is an apocalyptic number.

11302778880 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 11302778880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20257817580).

11302778880 is an abundant number, since it is smaller than the sum of its proper divisors (29212856280).

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

11302778880 is an equidigital number, since it uses as much as digits as its factorization.

11302778880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13666 (or 13637 counting only the distinct ones).

The product of its (nonzero) digits is 150528, while the sum is 45.

The spelling of 11302778880 in words is "eleven billion, three hundred two million, seven hundred seventy-eight thousand, eight hundred eighty".