1355432334161 has 4 divisors (see below), whose sum is σ = 1367867493300. Its totient is φ = 1342997175024.

The previous prime is 1355432334149. The next prime is 1355432334163. The reversal of 1355432334161 is 1614332345531.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1049118790225 + 306313543936 = 1024265^2 + 553456^2 .

It is a cyclic number.

It is not a de Polignac number, because 1355432334161 - 2³⁰ = 1354358592337 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1355432334163) 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 3 ways as a sum of consecutive naturals, for example, 6217579406 + ... + 6217579623.

It is an arithmetic number, because the mean of its divisors is an integer number (341966873325).

Almost surely, 2^{1355432334161} is an apocalyptic number.

It is an amenable number.

1355432334161 is a deficient number, since it is larger than the sum of its proper divisors (12435159139).

1355432334161 is a wasteful number, since it uses less digits than its factorization.

1355432334161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12435159138.

The product of its digits is 388800, while the sum is 41.

Adding to 1355432334161 its reverse (1614332345531), we get a palindrome (2969764679692).

The spelling of 1355432334161 in words is "one trillion, three hundred fifty-five billion, four hundred thirty-two million, three hundred thirty-four thousand, one hundred sixty-one".