57163105449 has 6 divisors (see below), whose sum is σ = 82568930106. Its totient is φ = 38108736960.

The previous prime is 57163105397. The next prime is 57163105459. The reversal of 57163105449 is 94450136175.

57163105449 is a `hidden beast` number, since 5 + 7 + 1 + 631 + 0 + 5 + 4 + 4 + 9 = 666.

It can be written as a sum of positive squares in only one way, i.e., 40695799824 + 16467305625 = 201732^2 + 128325^2 .

It is not a de Polignac number, because 57163105449 - 2²⁰ = 57162056873 is a prime.

It is not an unprimeable number, because it can be changed into a prime (57163105459) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3175728072 + ... + 3175728089.

It is an arithmetic number, because the mean of its divisors is an integer number (13761488351).

Almost surely, 2^57163105449 is an apocalyptic number.

It is an amenable number.

57163105449 is a deficient number, since it is larger than the sum of its proper divisors (25405824657).

57163105449 is a wasteful number, since it uses less digits than its factorization.

57163105449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6351456167 (or 6351456164 counting only the distinct ones).

The product of its (nonzero) digits is 453600, while the sum is 45.

The spelling of 57163105449 in words is "fifty-seven billion, one hundred sixty-three million, one hundred five thousand, four hundred forty-nine".