355234523353445 has 4 divisors (see below), whose sum is σ = 426281428024140. Its totient is φ = 284187618682752.

The previous prime is 355234523353441. The next prime is 355234523353447. The reversal of 355234523353445 is 544353325432553.

It is a happy number.

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 230936864312449 + 124297659040996 = 15196607^2 + 11148886^2 .

It is a cyclic number.

It is not a de Polignac number, because 355234523353445 - 2² = 355234523353441 is a prime.

It is a super-2 number, since 2×355234523353445² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (355234523353441) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35523452335340 + ... + 35523452335349.

It is an arithmetic number, because the mean of its divisors is an integer number (106570357006035).

Almost surely, 2^{355234523353445} is an apocalyptic number.

It is an amenable number.

355234523353445 is a deficient number, since it is larger than the sum of its proper divisors (71046904670695).

355234523353445 is an equidigital number, since it uses as much as digits as its factorization.

355234523353445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71046904670694.

The product of its digits is 194400000, while the sum is 56.

Adding to 355234523353445 its reverse (544353325432553), we get a palindrome (899587848785998).

The spelling of 355234523353445 in words is "three hundred fifty-five trillion, two hundred thirty-four billion, five hundred twenty-three million, three hundred fifty-three thousand, four hundred forty-five".