11198709027920 has 160 divisors (see below), whose sum is σ = 27227019264000. Its totient is φ = 4278553643520.

The previous prime is 11198709027901. The next prime is 11198709027941. The reversal of 11198709027920 is 2972090789111.

It is a super-2 number, since 2×11198709027920² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

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, 638494511 + ... + 638512049.

It is an arithmetic number, because the mean of its divisors is an integer number (170168870400).

Almost surely, 2^{11198709027920} is an apocalyptic number.

11198709027920 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 11198709027920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13613509632000).

11198709027920 is an abundant number, since it is smaller than the sum of its proper divisors (16028310236080).

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

11198709027920 is a wasteful number, since it uses less digits than its factorization.

11198709027920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20921 (or 20915 counting only the distinct ones).

The product of its (nonzero) digits is 1143072, while the sum is 56.

The spelling of 11198709027920 in words is "eleven trillion, one hundred ninety-eight billion, seven hundred nine million, twenty-seven thousand, nine hundred twenty".