2075666857 has 8 divisors (see below), whose sum is σ = 2286784512. Its totient is φ = 1868286000.

The previous prime is 2075666849. The next prime is 2075666891. The reversal of 2075666857 is 7586665702.

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

It is a cyclic number.

It is not a de Polignac number, because 2075666857 - 2³ = 2075666849 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2075666807) 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 7 ways as a sum of consecutive naturals, for example, 933033 + ... + 935254.

It is an arithmetic number, because the mean of its divisors is an integer number (285848064).

Almost surely, 2^2075666857 is an apocalyptic number.

It is an amenable number.

2075666857 is a deficient number, since it is larger than the sum of its proper divisors (211117655).

2075666857 is a wasteful number, since it uses less digits than its factorization.

2075666857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1868399.

The product of its (nonzero) digits is 4233600, while the sum is 52.

The square root of 2075666857 is about 45559.4870142323. The cubic root of 2075666857 is about 1275.6138235218.

The spelling of 2075666857 in words is "two billion, seventy-five million, six hundred sixty-six thousand, eight hundred fifty-seven".