1155434144071 has 8 divisors (see below), whose sum is σ = 1185947596800. Its totient is φ = 1125167764248.

The previous prime is 1155434144063. The next prime is 1155434144077. The reversal of 1155434144071 is 1704414345511.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1155434144071 - 2³ = 1155434144063 is a prime.

It is a super-4 number, since 4×1155434144071⁴ (a number of 49 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1155434144077) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 61758751 + ... + 61777456.

It is an arithmetic number, because the mean of its divisors is an integer number (148243449600).

Almost surely, 2^{1155434144071} is an apocalyptic number.

1155434144071 is a deficient number, since it is larger than the sum of its proper divisors (30513452729).

1155434144071 is a wasteful number, since it uses less digits than its factorization.

1155434144071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123536453.

The product of its (nonzero) digits is 134400, while the sum is 40.

Adding to 1155434144071 its reverse (1704414345511), we get a palindrome (2859848489582).

The spelling of 1155434144071 in words is "one trillion, one hundred fifty-five billion, four hundred thirty-four million, one hundred forty-four thousand, seventy-one".