3555864161 has 2 divisors, whose sum is σ = 3555864162. Its totient is φ = 3555864160.

The previous prime is 3555864149. The next prime is 3555864197. The reversal of 3555864161 is 1614685553.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3548465761 + 7398400 = 59569^2 + 2720^2 .

It is a cyclic number.

It is not a de Polignac number, because 3555864161 - 2¹⁰ = 3555863137 is a prime.

It is not a weakly prime, because it can be changed into another prime (3555864461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1777932080 + 1777932081.

It is an arithmetic number, because the mean of its divisors is an integer number (1777932081).

Almost surely, 2^3555864161 is an apocalyptic number.

It is an amenable number.

3555864161 is a deficient number, since it is larger than the sum of its proper divisors (1).

3555864161 is an equidigital number, since it uses as much as digits as its factorization.

3555864161 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 432000, while the sum is 44.

The square root of 3555864161 is about 59631.0670791660. The cubic root of 3555864161 is about 1526.3298135912.

The spelling of 3555864161 in words is "three billion, five hundred fifty-five million, eight hundred sixty-four thousand, one hundred sixty-one".