3555450140243 has 4 divisors (see below), whose sum is σ = 3558371628840. Its totient is φ = 3552528651648.

The previous prime is 3555450140239. The next prime is 3555450140257. The reversal of 3555450140243 is 3420410545553.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 3555450140243 - 2² = 3555450140239 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3555450140243.

It is not an unprimeable number, because it can be changed into a prime (3555450140233) 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, 1460742473 + ... + 1460744906.

It is an arithmetic number, because the mean of its divisors is an integer number (889592907210).

Almost surely, 2^{3555450140243} is an apocalyptic number.

3555450140243 is a deficient number, since it is larger than the sum of its proper divisors (2921488597).

3555450140243 is a wasteful number, since it uses less digits than its factorization.

3555450140243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2921488596.

The product of its (nonzero) digits is 720000, while the sum is 41.

Adding to 3555450140243 its reverse (3420410545553), we get a palindrome (6975860685796).

The spelling of 3555450140243 in words is "three trillion, five hundred fifty-five billion, four hundred fifty million, one hundred forty thousand, two hundred forty-three".