549316406203 has 2 divisors, whose sum is σ = 549316406204. Its totient is φ = 549316406202.

The previous prime is 549316406173. The next prime is 549316406251. The reversal of 549316406203 is 302604613945.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-549316406203 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 549316406203.

It is not a weakly prime, because it can be changed into another prime (549316406273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 274658203101 + 274658203102.

It is an arithmetic number, because the mean of its divisors is an integer number (274658203102).

Almost surely, 2^549316406203 is an apocalyptic number.

549316406203 is a deficient number, since it is larger than the sum of its proper divisors (1).

549316406203 is an equidigital number, since it uses as much as digits as its factorization.

549316406203 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 466560, while the sum is 43.

The spelling of 549316406203 in words is "five hundred forty-nine billion, three hundred sixteen million, four hundred six thousand, two hundred three".