155345324441 has 4 divisors (see below), whose sum is σ = 156203586084. Its totient is φ = 154487062800.

The previous prime is 155345324411. The next prime is 155345324609. The reversal of 155345324441 is 144423543551.

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 9757290841 + 145588033600 = 98779^2 + 381560^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-155345324441 is a prime.

It is a super-3 number, since 3×155345324441³ (a number of 35 digits) contains 333 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (155345324411) 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, 429130550 + ... + 429130911.

It is an arithmetic number, because the mean of its divisors is an integer number (39050896521).

Almost surely, 2^155345324441 is an apocalyptic number.

It is an amenable number.

155345324441 is a deficient number, since it is larger than the sum of its proper divisors (858261643).

155345324441 is an equidigital number, since it uses as much as digits as its factorization.

155345324441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 858261642.

The product of its digits is 576000, while the sum is 41.

Adding to 155345324441 its reverse (144423543551), we get a palindrome (299768867992).

The spelling of 155345324441 in words is "one hundred fifty-five billion, three hundred forty-five million, three hundred twenty-four thousand, four hundred forty-one".