57106946916865 has 16 divisors (see below), whose sum is σ = 68634442674000. Its totient is φ = 45614822326272.

The previous prime is 57106946916839. The next prime is 57106946916869. The reversal of 57106946916865 is 56861964960175.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 12949529616 + 57093997387249 = 113796^2 + 7556057^2 .

It is a cyclic number.

It is not a de Polignac number, because 57106946916865 - 2³⁹ = 56557191102977 is a prime.

It is a super-2 number, since 2×57106946916865² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (57106946916869) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 265692961 + ... + 265907809.

It is an arithmetic number, because the mean of its divisors is an integer number (4289652667125).

Almost surely, 2^{57106946916865} is an apocalyptic number.

It is an amenable number.

57106946916865 is a deficient number, since it is larger than the sum of its proper divisors (11527495757135).

57106946916865 is a wasteful number, since it uses less digits than its factorization.

57106946916865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 296916.

The product of its (nonzero) digits is 587865600, while the sum is 73.

The spelling of 57106946916865 in words is "fifty-seven trillion, one hundred six billion, nine hundred forty-six million, nine hundred sixteen thousand, eight hundred sixty-five".