355056421305 has 8 divisors (see below), whose sum is σ = 568090274112. Its totient is φ = 189363424688.

The previous prime is 355056421303. The next prime is 355056421337. The reversal of 355056421305 is 503124650553.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 355056421305 - 2¹ = 355056421303 is a prime.

It is not an unprimeable number, because it can be changed into a prime (355056421303) 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 7 ways as a sum of consecutive naturals, for example, 11835214029 + ... + 11835214058.

It is an arithmetic number, because the mean of its divisors is an integer number (71011284264).

Almost surely, 2^355056421305 is an apocalyptic number.

It is an amenable number.

355056421305 is a deficient number, since it is larger than the sum of its proper divisors (213033852807).

355056421305 is a wasteful number, since it uses less digits than its factorization.

355056421305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23670428095.

The product of its (nonzero) digits is 270000, while the sum is 39.

The spelling of 355056421305 in words is "three hundred fifty-five billion, fifty-six million, four hundred twenty-one thousand, three hundred five".