355072109305 has 8 divisors (see below), whose sum is σ = 451150444872. Its totient is φ = 267348411648.

The previous prime is 355072109303. The next prime is 355072109321. The reversal of 355072109305 is 503901270553.

It can be written as a sum of positive squares in 4 ways, for example, as 78525490176 + 276546619129 = 280224^2 + 525877^2 .

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 355072109305 - 2¹ = 355072109303 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (355072109303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2088659382 + ... + 2088659551.

It is an arithmetic number, because the mean of its divisors is an integer number (56393805609).

Almost surely, 2^355072109305 is an apocalyptic number.

It is an amenable number.

355072109305 is a deficient number, since it is larger than the sum of its proper divisors (96078335567).

355072109305 is a wasteful number, since it uses less digits than its factorization.

355072109305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4177318955.

The product of its (nonzero) digits is 141750, while the sum is 40.

Adding to 355072109305 its reverse (503901270553), we get a palindrome (858973379858).

The spelling of 355072109305 in words is "three hundred fifty-five billion, seventy-two million, one hundred nine thousand, three hundred five".