556640078303 has 2 divisors, whose sum is σ = 556640078304. Its totient is φ = 556640078302.

The previous prime is 556640078299. The next prime is 556640078347. The reversal of 556640078303 is 303870046655.

556640078303 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 556640078303 - 2² = 556640078299 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (556640078003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 278320039151 + 278320039152.

It is an arithmetic number, because the mean of its divisors is an integer number (278320039152).

Almost surely, 2^556640078303 is an apocalyptic number.

556640078303 is a deficient number, since it is larger than the sum of its proper divisors (1).

556640078303 is an equidigital number, since it uses as much as digits as its factorization.

556640078303 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1814400, while the sum is 47.

The spelling of 556640078303 in words is "five hundred fifty-six billion, six hundred forty million, seventy-eight thousand, three hundred three".