57455643161 has 16 divisors (see below), whose sum is σ = 69365592960. Its totient is φ = 46489645440.

The previous prime is 57455643151. The next prime is 57455643163. The reversal of 57455643161 is 16134655475.

It is a happy number.

It is not a de Polignac number, because 57455643161 - 2¹⁴ = 57455626777 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (57455643163) 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 in 15 ways as a sum of consecutive naturals, for example, 731306 + ... + 806051.

It is an arithmetic number, because the mean of its divisors is an integer number (4335349560).

Almost surely, 2^57455643161 is an apocalyptic number.

It is an amenable number.

57455643161 is a deficient number, since it is larger than the sum of its proper divisors (11909949799).

57455643161 is a wasteful number, since it uses less digits than its factorization.

57455643161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1537664.

The product of its digits is 1512000, while the sum is 47.

The spelling of 57455643161 in words is "fifty-seven billion, four hundred fifty-five million, six hundred forty-three thousand, one hundred sixty-one".