355440544123 has 16 divisors (see below), whose sum is σ = 438495943680. Its totient is φ = 281368223136.

The previous prime is 355440544111. The next prime is 355440544153. The reversal of 355440544123 is 321445044553.

It is not a de Polignac number, because 355440544123 - 2⁹ = 355440543611 is a prime.

It is a super-3 number, since 3×355440544123³ (a number of 36 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (355440544153) 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 15 ways as a sum of consecutive naturals, for example, 38059215 + ... + 38068552.

It is an arithmetic number, because the mean of its divisors is an integer number (27405996480).

Almost surely, 2^355440544123 is an apocalyptic number.

355440544123 is a deficient number, since it is larger than the sum of its proper divisors (83055399557).

355440544123 is a wasteful number, since it uses less digits than its factorization.

355440544123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76127826.

The product of its (nonzero) digits is 576000, while the sum is 40.

Adding to 355440544123 its reverse (321445044553), we get a palindrome (676885588676).

The spelling of 355440544123 in words is "three hundred fifty-five billion, four hundred forty million, five hundred forty-four thousand, one hundred twenty-three".