6555938553911 has 2 divisors, whose sum is σ = 6555938553912. Its totient is φ = 6555938553910.

The previous prime is 6555938553883. The next prime is 6555938553949. The reversal of 6555938553911 is 1193558395556.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6555938553911 - 2³⁰ = 6554864812087 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6555538553911) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3277969276955 + 3277969276956.

It is an arithmetic number, because the mean of its divisors is an integer number (3277969276956).

Almost surely, 2^{6555938553911} is an apocalyptic number.

6555938553911 is a deficient number, since it is larger than the sum of its proper divisors (1).

6555938553911 is an equidigital number, since it uses as much as digits as its factorization.

6555938553911 is an evil number, because the sum of its binary digits is even.

The product of its digits is 109350000, while the sum is 65.

The spelling of 6555938553911 in words is "six trillion, five hundred fifty-five billion, nine hundred thirty-eight million, five hundred fifty-three thousand, nine hundred eleven".