2057160221 has 8 divisors (see below), whose sum is σ = 2091553464. Its totient is φ = 2022935040.

The previous prime is 2057160169. The next prime is 2057160239. The reversal of 2057160221 is 1220617502.

It can be written as a sum of positive squares in 4 ways, for example, as 783384121 + 1273776100 = 27989^2 + 35690^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2057160221 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2057160241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17210 + ... + 66411.

It is an arithmetic number, because the mean of its divisors is an integer number (261444183).

Almost surely, 2^2057160221 is an apocalyptic number.

It is an amenable number.

2057160221 is a deficient number, since it is larger than the sum of its proper divisors (34393243).

2057160221 is an equidigital number, since it uses as much as digits as its factorization.

2057160221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84031.

The product of its (nonzero) digits is 1680, while the sum is 26.

The square root of 2057160221 is about 45355.9281792358. The cubic root of 2057160221 is about 1271.8113778710.

Adding to 2057160221 its reverse (1220617502), we get a palindrome (3277777723).

The spelling of 2057160221 in words is "two billion, fifty-seven million, one hundred sixty thousand, two hundred twenty-one".