1115159157988 has 12 divisors (see below), whose sum is σ = 1951606239660. Its totient is φ = 557557375232.

The previous prime is 1115159157941. The next prime is 1115159157989. The reversal of 1115159157988 is 8897519515111.

It can be written as a sum of positive squares in 2 ways, for example, as 180190062144 + 934969095844 = 424488^2 + 966938^2 .

It is not an unprimeable number, because it can be changed into a prime (1115159157989) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5437681 + ... + 5639032.

It is an arithmetic number, because the mean of its divisors is an integer number (162633853305).

Almost surely, 2^{1115159157988} is an apocalyptic number.

It is an amenable number.

1115159157988 is a deficient number, since it is larger than the sum of its proper divisors (836447081672).

1115159157988 is a wasteful number, since it uses less digits than its factorization.

1115159157988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11101886 (or 11101884 counting only the distinct ones).

The product of its digits is 4536000, while the sum is 61.

The spelling of 1115159157988 in words is "one trillion, one hundred fifteen billion, one hundred fifty-nine million, one hundred fifty-seven thousand, nine hundred eighty-eight".