11100001199980 has 192 divisors, whose sum is σ = 29374899692544. Its totient is φ = 3422528640000.

The previous prime is 11100001199951. The next prime is 11100001200019. The reversal of 11100001199980 is 8999110000111.

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, 183662527 + ... + 183722953.

It is an arithmetic number, because the mean of its divisors is an integer number (152994269232).

Almost surely, 2^{11100001199980} is an apocalyptic number.

11100001199980 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 11100001199980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14687449846272).

11100001199980 is an abundant number, since it is smaller than the sum of its proper divisors (18274898492564).

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

11100001199980 is a wasteful number, since it uses less digits than its factorization.

11100001199980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61736 (or 61734 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 40.

The spelling of 11100001199980 in words is "eleven trillion, one hundred billion, one million, one hundred ninety-nine thousand, nine hundred eighty".