11180397696 has 128 divisors (see below), whose sum is σ = 33665956800. Its totient is φ = 3259035648.

The previous prime is 11180397649. The next prime is 11180397703. The reversal of 11180397696 is 69679308111.

It is a tau number, because it is divible by the number of its divisors (128).

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, 35910 + ... + 153786.

Almost surely, 2^11180397696 is an apocalyptic number.

11180397696 is a gapful number since it is divisible by the number (16) 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 11180397696, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16832978400).

11180397696 is an abundant number, since it is smaller than the sum of its proper divisors (22485559104).

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

11180397696 is a wasteful number, since it uses less digits than its factorization.

11180397696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117926 (or 117914 counting only the distinct ones).

The product of its (nonzero) digits is 489888, while the sum is 51.

The spelling of 11180397696 in words is "eleven billion, one hundred eighty million, three hundred ninety-seven thousand, six hundred ninety-six".