355344440503 has 4 divisors (see below), whose sum is σ = 382678628248. Its totient is φ = 328010252760.

The previous prime is 355344440401. The next prime is 355344440597. The reversal of 355344440503 is 305044443553.

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 355344440503 - 2³⁷ = 217905487031 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 (355344410503) 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 3 ways as a sum of consecutive naturals, for example, 13667093853 + ... + 13667093878.

It is an arithmetic number, because the mean of its divisors is an integer number (95669657062).

Almost surely, 2^355344440503 is an apocalyptic number.

355344440503 is a deficient number, since it is larger than the sum of its proper divisors (27334187745).

355344440503 is a wasteful number, since it uses less digits than its factorization.

355344440503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27334187744.

The product of its (nonzero) digits is 864000, while the sum is 40.

The spelling of 355344440503 in words is "three hundred fifty-five billion, three hundred forty-four million, four hundred forty thousand, five hundred three".