6155655615553 has 2 divisors, whose sum is σ = 6155655615554. Its totient is φ = 6155655615552.

The previous prime is 6155655615511. The next prime is 6155655615607. The reversal of 6155655615553 is 3555165565516.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6057077198769 + 98578416784 = 2461113^2 + 313972^2 .

It is a cyclic number.

It is not a de Polignac number, because 6155655615553 - 2³³ = 6147065680961 is a prime.

It is not a weakly prime, because it can be changed into another prime (6155655613553) 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, 3077827807776 + 3077827807777.

It is an arithmetic number, because the mean of its divisors is an integer number (3077827807777).

Almost surely, 2^{6155655615553} is an apocalyptic number.

It is an amenable number.

6155655615553 is a deficient number, since it is larger than the sum of its proper divisors (1).

6155655615553 is an equidigital number, since it uses as much as digits as its factorization.

6155655615553 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 50625000, while the sum is 58.

The spelling of 6155655615553 in words is "six trillion, one hundred fifty-five billion, six hundred fifty-five million, six hundred fifteen thousand, five hundred fifty-three".