2057020166717 has 4 divisors (see below), whose sum is σ = 2112615306396. Its totient is φ = 2001425027040.

The previous prime is 2057020166701. The next prime is 2057020166753. The reversal of 2057020166717 is 7176610207502.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1816742753956 + 240277412761 = 1347866^2 + 490181^2 .

It is a cyclic number.

It is not a de Polignac number, because 2057020166717 - 2⁴ = 2057020166701 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2057020169717) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27797569784 + ... + 27797569857.

It is an arithmetic number, because the mean of its divisors is an integer number (528153826599).

Almost surely, 2^{2057020166717} is an apocalyptic number.

It is an amenable number.

2057020166717 is a deficient number, since it is larger than the sum of its proper divisors (55595139679).

2057020166717 is an equidigital number, since it uses as much as digits as its factorization.

2057020166717 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55595139678.

The product of its (nonzero) digits is 246960, while the sum is 44.

The spelling of 2057020166717 in words is "two trillion, fifty-seven billion, twenty million, one hundred sixty-six thousand, seven hundred seventeen".