6556165155011 has 2 divisors, whose sum is σ = 6556165155012. Its totient is φ = 6556165155010.

The previous prime is 6556165154983. The next prime is 6556165155017. The reversal of 6556165155011 is 1105515616556.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6556165155011 - 2²² = 6556160960707 is a prime.

It is not a weakly prime, because it can be changed into another prime (6556165155017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3278082577505 + 3278082577506.

It is an arithmetic number, because the mean of its divisors is an integer number (3278082577506).

Almost surely, 2^{6556165155011} is an apocalyptic number.

6556165155011 is a deficient number, since it is larger than the sum of its proper divisors (1).

6556165155011 is an equidigital number, since it uses as much as digits as its factorization.

6556165155011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 675000, while the sum is 47.

It can be divided in two parts, 6556165 and 155011, that added together give a palindrome (6711176).

The spelling of 6556165155011 in words is "six trillion, five hundred fifty-six billion, one hundred sixty-five million, one hundred fifty-five thousand, eleven".