1155442401441 has 24 divisors (see below), whose sum is σ = 1726579207080. Its totient is φ = 743708883456.

The previous prime is 1155442401437. The next prime is 1155442401527. The reversal of 1155442401441 is 1441042445511.

1155442401441 is a `hidden beast` number, since 1 + 155 + 44 + 24 + 0 + 1 + 441 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 138428643600 + 1017013757841 = 372060^2 + 1008471^2 .

It is not a de Polignac number, because 1155442401441 - 2² = 1155442401437 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1155442401396 and 1155442401405.

It is not an unprimeable number, because it can be changed into a prime (1155442401401) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11605911 + ... + 11705043.

It is an arithmetic number, because the mean of its divisors is an integer number (71940800295).

Almost surely, 2^{1155442401441} is an apocalyptic number.

It is an amenable number.

1155442401441 is a deficient number, since it is larger than the sum of its proper divisors (571136805639).

1155442401441 is a wasteful number, since it uses less digits than its factorization.

1155442401441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143825 (or 143822 counting only the distinct ones).

The product of its (nonzero) digits is 51200, while the sum is 36.

Adding to 1155442401441 its reverse (1441042445511), we get a palindrome (2596484846952).

The spelling of 1155442401441 in words is "one trillion, one hundred fifty-five billion, four hundred forty-two million, four hundred one thousand, four hundred forty-one".