6555545562331 has 2 divisors, whose sum is σ = 6555545562332. Its totient is φ = 6555545562330.

The previous prime is 6555545562299. The next prime is 6555545562373. The reversal of 6555545562331 is 1332655455556.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6555545562331 - 2⁵ = 6555545562299 is a prime.

It is a super-2 number, since 2×6555545562331² (a number of 26 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (6555545563331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3277772781165 + 3277772781166.

It is an arithmetic number, because the mean of its divisors is an integer number (3277772781166).

Almost surely, 2^{6555545562331} is an apocalyptic number.

6555545562331 is a deficient number, since it is larger than the sum of its proper divisors (1).

6555545562331 is an equidigital number, since it uses as much as digits as its factorization.

6555545562331 is an evil number, because the sum of its binary digits is even.

The product of its digits is 40500000, while the sum is 55.

The spelling of 6555545562331 in words is "six trillion, five hundred fifty-five billion, five hundred forty-five million, five hundred sixty-two thousand, three hundred thirty-one".