6155161228817 has 2 divisors, whose sum is σ = 6155161228818. Its totient is φ = 6155161228816.

The previous prime is 6155161228807. The next prime is 6155161228841. The reversal of 6155161228817 is 7188221615516.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3286392491281 + 2868768737536 = 1812841^2 + 1693744^2 .

It is a cyclic number.

It is not a de Polignac number, because 6155161228817 - 2⁶ = 6155161228753 is a prime.

It is a super-4 number, since 4×6155161228817⁴ (a number of 52 digits) contains 4444 as substring.

It is not a weakly prime, because it can be changed into another prime (6155161228807) 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, 3077580614408 + 3077580614409.

It is an arithmetic number, because the mean of its divisors is an integer number (3077580614409).

Almost surely, 2^{6155161228817} is an apocalyptic number.

It is an amenable number.

6155161228817 is a deficient number, since it is larger than the sum of its proper divisors (1).

6155161228817 is an equidigital number, since it uses as much as digits as its factorization.

6155161228817 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1612800, while the sum is 53.

The spelling of 6155161228817 in words is "six trillion, one hundred fifty-five billion, one hundred sixty-one million, two hundred twenty-eight thousand, eight hundred seventeen".