11155796500 has 24 divisors (see below), whose sum is σ = 24364260648. Its totient is φ = 4462318400.

The previous prime is 11155796429. The next prime is 11155796507. The reversal of 11155796500 is 569755111.

It can be written as a sum of positive squares in 4 ways, for example, as 179881744 + 10975914756 = 13412^2 + 104766^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11155796507) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11155297 + ... + 11156296.

It is an arithmetic number, because the mean of its divisors is an integer number (1015177527).

Almost surely, 2^11155796500 is an apocalyptic number.

11155796500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11155796500 is an abundant number, since it is smaller than the sum of its proper divisors (13208464148).

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

11155796500 is a wasteful number, since it uses less digits than its factorization.

11155796500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22311612 (or 22311600 counting only the distinct ones).

The product of its (nonzero) digits is 47250, while the sum is 40.

The spelling of 11155796500 in words is "eleven billion, one hundred fifty-five million, seven hundred ninety-six thousand, five hundred".