5155660161 has 6 divisors (see below), whose sum is σ = 7447064690. Its totient is φ = 3437106768.

The previous prime is 5155660141. The next prime is 5155660163. The reversal of 5155660161 is 1610665515.

It can be written as a sum of positive squares in only one way, i.e., 3875809536 + 1279850625 = 62256^2 + 35775^2 .

It is not a de Polignac number, because 5155660161 - 2⁵ = 5155660129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5155660163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 286425556 + ... + 286425573.

Almost surely, 2^5155660161 is an apocalyptic number.

It is an amenable number.

5155660161 is a deficient number, since it is larger than the sum of its proper divisors (2291404529).

5155660161 is a wasteful number, since it uses less digits than its factorization.

5155660161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 572851135 (or 572851132 counting only the distinct ones).

The product of its (nonzero) digits is 27000, while the sum is 36.

The square root of 5155660161 is about 71802.9258526420. The cubic root of 5155660161 is about 1727.5399296432.

The spelling of 5155660161 in words is "five billion, one hundred fifty-five million, six hundred sixty thousand, one hundred sixty-one".