20160775 has 12 divisors (see below), whose sum is σ = 25344112. Its totient is φ = 15906240.

The previous prime is 20160773. The next prime is 20160781. The reversal of 20160775 is 57706102.

It is not a de Polignac number, because 20160775 - 2¹ = 20160773 is a prime.

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20160773) 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 11 ways as a sum of consecutive naturals, for example, 3699 + ... + 7348.

Almost surely, 2^20160775 is an apocalyptic number.

20160775 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

20160775 is a deficient number, since it is larger than the sum of its proper divisors (5183337).

20160775 is a wasteful number, since it uses less digits than its factorization.

20160775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11130 (or 11125 counting only the distinct ones).

The product of its (nonzero) digits is 2940, while the sum is 28.

The square root of 20160775 is about 4490.0751664087. The cubic root of 20160775 is about 272.1671721407.

Adding to 20160775 its reverse (57706102), we get a palindrome (77866877).

The spelling of 20160775 in words is "twenty million, one hundred sixty thousand, seven hundred seventy-five".