355556343343 has 4 divisors (see below), whose sum is σ = 356298632640. Its totient is φ = 354814054048.

The previous prime is 355556343341. The next prime is 355556343377. The reversal of 355556343343 is 343343655553.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 343343655553 = 1481 ⋅231832313.

It is a cyclic number.

It is not a de Polignac number, because 355556343343 - 2¹ = 355556343341 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (355556343341) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 371143930 + ... + 371144887.

It is an arithmetic number, because the mean of its divisors is an integer number (89074658160).

Almost surely, 2^355556343343 is an apocalyptic number.

355556343343 is a deficient number, since it is larger than the sum of its proper divisors (742289297).

355556343343 is an equidigital number, since it uses as much as digits as its factorization.

355556343343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 742289296.

The product of its digits is 14580000, while the sum is 49.

Adding to 355556343343 its reverse (343343655553), we get a palindrome (698899998896).

The spelling of 355556343343 in words is "three hundred fifty-five billion, five hundred fifty-six million, three hundred forty-three thousand, three hundred forty-three".