1196111520 has 144 divisors (see below), whose sum is σ = 4093499592. Its totient is φ = 318044160.

The previous prime is 1196111509. The next prime is 1196111549. The reversal of 1196111520 is 251116911.

1196111520 is a `hidden beast` number, since 1 + 19 + 611 + 15 + 20 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 378380304 + 817731216 = 19452^2 + 28596^2 .

It is a tau number, because it is divible by the number of its divisors (144).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 605254 + ... + 607226.

Almost surely, 2^1196111520 is an apocalyptic number.

1196111520 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 1196111520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2046749796).

1196111520 is an abundant number, since it is smaller than the sum of its proper divisors (2897388072).

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

1196111520 is a wasteful number, since it uses less digits than its factorization.

1196111520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2415 (or 2404 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 27.

The square root of 1196111520 is about 34584.8452360279. The cubic root of 1196111520 is about 1061.5095142123.

The spelling of 1196111520 in words is "one billion, one hundred ninety-six million, one hundred eleven thousand, five hundred twenty".