1555163114471 has 2 divisors, whose sum is σ = 1555163114472. Its totient is φ = 1555163114470.

The previous prime is 1555163114467. The next prime is 1555163114521. The reversal of 1555163114471 is 1744113615551.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1555163114471 - 2² = 1555163114467 is a prime.

It is a super-3 number, since 3×1555163114471³ (a number of 38 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1555160114471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 777581557235 + 777581557236.

It is an arithmetic number, because the mean of its divisors is an integer number (777581557236).

Almost surely, 2^{1555163114471} is an apocalyptic number.

1555163114471 is a deficient number, since it is larger than the sum of its proper divisors (1).

1555163114471 is an equidigital number, since it uses as much as digits as its factorization.

1555163114471 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 252000, while the sum is 44.

The spelling of 1555163114471 in words is "one trillion, five hundred fifty-five billion, one hundred sixty-three million, one hundred fourteen thousand, four hundred seventy-one".