355444321561 has 8 divisors (see below), whose sum is σ = 406226746944. Its totient is φ = 304663062480.

The previous prime is 355444321541. The next prime is 355444321651. The reversal of 355444321561 is 165123444553.

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

It is not a de Polignac number, because 355444321561 - 2⁷ = 355444321433 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (355444321541) 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, 507486 + ... + 984088.

It is an arithmetic number, because the mean of its divisors is an integer number (50778343368).

Almost surely, 2^355444321561 is an apocalyptic number.

It is an amenable number.

355444321561 is a deficient number, since it is larger than the sum of its proper divisors (50782425383).

355444321561 is a wasteful number, since it uses less digits than its factorization.

355444321561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 583151.

The product of its digits is 864000, while the sum is 43.

The spelling of 355444321561 in words is "three hundred fifty-five billion, four hundred forty-four million, three hundred twenty-one thousand, five hundred sixty-one".