11117542080 has 224 divisors, whose sum is σ = 36689019840. Its totient is φ = 2848849920.

The previous prime is 11117542057. The next prime is 11117542123. The reversal of 11117542080 is 8024571111.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6708612 + ... + 6710268.

Almost surely, 2^11117542080 is an apocalyptic number.

11117542080 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 11117542080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18344509920).

11117542080 is an abundant number, since it is smaller than the sum of its proper divisors (25571477760).

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

11117542080 is a wasteful number, since it uses less digits than its factorization.

11117542080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1947 (or 1937 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 30.

The spelling of 11117542080 in words is "eleven billion, one hundred seventeen million, five hundred forty-two thousand, eighty".