355540022405 has 16 divisors (see below), whose sum is σ = 451787382000. Its totient is φ = 267675589632.

The previous prime is 355540022381. The next prime is 355540022413. The reversal of 355540022405 is 504220045553.

It can be written as a sum of positive squares in 8 ways, for example, as 15695328961 + 339844693444 = 125281^2 + 582962^2 .

It is a cyclic number.

It is not a de Polignac number, because 355540022405 - 2¹⁰ = 355540021381 is a prime.

It is a congruent number.

It is an unprimeable number.

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, 740471 + ... + 1122219.

It is an arithmetic number, because the mean of its divisors is an integer number (28236711375).

Almost surely, 2^355540022405 is an apocalyptic number.

It is an amenable number.

355540022405 is a deficient number, since it is larger than the sum of its proper divisors (96247359595).

355540022405 is a wasteful number, since it uses less digits than its factorization.

355540022405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 392728.

The product of its (nonzero) digits is 120000, while the sum is 35.

Adding to 355540022405 its reverse (504220045553), we get a palindrome (859760067958).

The spelling of 355540022405 in words is "three hundred fifty-five billion, five hundred forty million, twenty-two thousand, four hundred five".