57671566505 has 24 divisors (see below), whose sum is σ = 80779659912. Its totient is φ = 39411197952.

The previous prime is 57671566487. The next prime is 57671566531. The reversal of 57671566505 is 50566517675.

It can be written as a sum of positive squares in 4 ways, for example, as 4061257984 + 53610308521 = 63728^2 + 231539^2 .

It is not a de Polignac number, because 57671566505 - 2¹⁴ = 57671550121 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 329912 + ... + 473481.

It is an arithmetic number, because the mean of its divisors is an integer number (3365819163).

Almost surely, 2^57671566505 is an apocalyptic number.

It is an amenable number.

57671566505 is a deficient number, since it is larger than the sum of its proper divisors (23108093407).

57671566505 is a wasteful number, since it uses less digits than its factorization.

57671566505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 803705 (or 803698 counting only the distinct ones).

The product of its (nonzero) digits is 6615000, while the sum is 53.

The spelling of 57671566505 in words is "fifty-seven billion, six hundred seventy-one million, five hundred sixty-six thousand, five hundred five".