1155004050500 has 96 divisors (see below), whose sum is σ = 2602921976928. Its totient is φ = 447442176000.

The previous prime is 1155004050467. The next prime is 1155004050517. The reversal of 1155004050500 is 50504005511.

It can be written as a sum of positive squares in 16 ways, for example, as 1154949998596 + 54051904 = 1074686^2 + 7352^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1155004050500.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2602874 + ... + 3014126.

It is an arithmetic number, because the mean of its divisors is an integer number (27113770593).

Almost surely, 2^{1155004050500} is an apocalyptic number.

1155004050500 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 1155004050500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1301460988464).

1155004050500 is an abundant number, since it is smaller than the sum of its proper divisors (1447917926428).

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

1155004050500 is a wasteful number, since it uses less digits than its factorization.

1155004050500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 411450 (or 411438 counting only the distinct ones).

The product of its (nonzero) digits is 2500, while the sum is 26.

The spelling of 1155004050500 in words is "one trillion, one hundred fifty-five billion, four million, fifty thousand, five hundred".