11066603280 has 80 divisors (see below), whose sum is σ = 34416309120. Its totient is φ = 2941645824.

The previous prime is 11066603263. The next prime is 11066603297. The reversal of 11066603280 is 8230666011.

It is an interprime number because it is at equal distance from previous prime (11066603263) and next prime (11066603297).

It is a tau number, because it is divible by the number of its divisors (80).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1461 + ... + 148779.

It is an arithmetic number, because the mean of its divisors is an integer number (430203864).

Almost surely, 2^11066603280 is an apocalyptic number.

11066603280 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 11066603280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17208154560).

11066603280 is an abundant number, since it is smaller than the sum of its proper divisors (23349705840).

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

11066603280 is a wasteful number, since it uses less digits than its factorization.

11066603280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147648 (or 147642 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 33.

The spelling of 11066603280 in words is "eleven billion, sixty-six million, six hundred three thousand, two hundred eighty".