11555401450 has 24 divisors (see below), whose sum is σ = 21714633612. Its totient is φ = 4574507520.

The previous prime is 11555401433. The next prime is 11555401453. The reversal of 11555401450 is 5410455511.

11555401450 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 6 ways, for example, as 3663033529 + 7892367921 = 60523^2 + 88839^2 .

It is not an unprimeable number, because it can be changed into a prime (11555401453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1186429 + ... + 1196128.

Almost surely, 2^11555401450 is an apocalyptic number.

11555401450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11555401450 is a deficient number, since it is larger than the sum of its proper divisors (10159232162).

11555401450 is a wasteful number, since it uses less digits than its factorization.

11555401450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2382666 (or 2382661 counting only the distinct ones).

The product of its (nonzero) digits is 10000, while the sum is 31.

Adding to 11555401450 its reverse (5410455511), we get a palindrome (16965856961).

The spelling of 11555401450 in words is "eleven billion, five hundred fifty-five million, four hundred one thousand, four hundred fifty".