20570168 has 16 divisors (see below), whose sum is σ = 39466680. Its totient is φ = 10045728.

The previous prime is 20570167. The next prime is 20570171. The reversal of 20570168 is 86107502.

It is a self number, because there is not a number n which added to its sum of digits gives 20570168.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20570167) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29555 + ... + 30242.

Almost surely, 2^20570168 is an apocalyptic number.

It is an amenable number.

20570168 is a deficient number, since it is larger than the sum of its proper divisors (18896512).

20570168 is a wasteful number, since it uses less digits than its factorization.

20570168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59846 (or 59842 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 29.

The square root of 20570168 is about 4535.4347090439. The cubic root of 20570168 is about 273.9970873649.

The spelling of 20570168 in words is "twenty million, five hundred seventy thousand, one hundred sixty-eight".