555599774663 has 2 divisors, whose sum is σ = 555599774664. Its totient is φ = 555599774662.

The previous prime is 555599774627. The next prime is 555599774677. The reversal of 555599774663 is 366477995555.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 555599774663 - 2¹⁸ = 555599512519 is a prime.

It is a super-2 number, since 2×555599774663² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (555599774683) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 277799887331 + 277799887332.

It is an arithmetic number, because the mean of its divisors is an integer number (277799887332).

Almost surely, 2^555599774663 is an apocalyptic number.

555599774663 is a deficient number, since it is larger than the sum of its proper divisors (1).

555599774663 is an equidigital number, since it uses as much as digits as its factorization.

555599774663 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1071630000, while the sum is 71.

The spelling of 555599774663 in words is "five hundred fifty-five billion, five hundred ninety-nine million, seven hundred seventy-four thousand, six hundred sixty-three".