2057660811 has 24 divisors (see below), whose sum is σ = 3044184000. Its totient is φ = 1338600816.

The previous prime is 2057660791. The next prime is 2057660819. The reversal of 2057660811 is 1180667502.

2057660811 is a `hidden beast` number, since 2 + 0 + 576 + 6 + 0 + 81 + 1 = 666.

It is not a de Polignac number, because 2057660811 - 2⁶ = 2057660747 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2057660819) 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 23 ways as a sum of consecutive naturals, for example, 578340 + ... + 581886.

It is an arithmetic number, because the mean of its divisors is an integer number (126841000).

Almost surely, 2^2057660811 is an apocalyptic number.

2057660811 is a deficient number, since it is larger than the sum of its proper divisors (986523189).

2057660811 is a wasteful number, since it uses less digits than its factorization.

2057660811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5095 (or 5092 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 36.

The square root of 2057660811 is about 45361.4463063073. The cubic root of 2057660811 is about 1271.9145304949.

The spelling of 2057660811 in words is "two billion, fifty-seven million, six hundred sixty thousand, eight hundred eleven".