355543161345553 has 4 divisors (see below), whose sum is σ = 359063390665908. Its totient is φ = 352022932025200.

The previous prime is 355543161345551. The next prime is 355543161345577.

355543161345553 is nontrivially palindromic in base 10.

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 220898305571904 + 134644855773649 = 14862648^2 + 11603657^2 .

It is a cyclic number.

It is not a de Polignac number, because 355543161345553 - 2¹ = 355543161345551 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (355543161345551) 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, 1760114660026 + ... + 1760114660227.

It is an arithmetic number, because the mean of its divisors is an integer number (89765847666477).

Almost surely, 2^{355543161345553} is an apocalyptic number.

It is an amenable number.

355543161345553 is a deficient number, since it is larger than the sum of its proper divisors (3520229320355).

355543161345553 is a wasteful number, since it uses less digits than its factorization.

355543161345553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3520229320354.

The product of its digits is 121500000, while the sum is 58.

The spelling of 355543161345553 in words is "three hundred fifty-five trillion, five hundred forty-three billion, one hundred sixty-one million, three hundred forty-five thousand, five hundred fifty-three".