555161016503 has 2 divisors, whose sum is σ = 555161016504. Its totient is φ = 555161016502.

The previous prime is 555161016493. The next prime is 555161016551. The reversal of 555161016503 is 305610161555.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 555161016503 - 2⁶ = 555161016439 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (555161016593) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 277580508251 + 277580508252.

It is an arithmetic number, because the mean of its divisors is an integer number (277580508252).

Almost surely, 2^555161016503 is an apocalyptic number.

555161016503 is a deficient number, since it is larger than the sum of its proper divisors (1).

555161016503 is an equidigital number, since it uses as much as digits as its factorization.

555161016503 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 67500, while the sum is 38.

The spelling of 555161016503 in words is "five hundred fifty-five billion, one hundred sixty-one million, sixteen thousand, five hundred three".