2067750161 has 4 divisors (see below), whose sum is σ = 2067861300. Its totient is φ = 2067639024.

The previous prime is 2067750151. The next prime is 2067750197. The reversal of 2067750161 is 1610577602.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 1610577602 = 2 ⋅805288801.

It can be written as a sum of positive squares in 2 ways, for example, as 1003685761 + 1064064400 = 31681^2 + 32620^2 .

It is a cyclic number.

It is not a de Polignac number, because 2067750161 - 2¹⁰ = 2067749137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2067750151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20126 + ... + 67383.

It is an arithmetic number, because the mean of its divisors is an integer number (516965325).

Almost surely, 2^2067750161 is an apocalyptic number.

It is an amenable number.

2067750161 is a deficient number, since it is larger than the sum of its proper divisors (111139).

2067750161 is an equidigital number, since it uses as much as digits as its factorization.

2067750161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111138.

The product of its (nonzero) digits is 17640, while the sum is 35.

The square root of 2067750161 is about 45472.5209439723. The cubic root of 2067750161 is about 1273.9900059349.

The spelling of 2067750161 in words is "two billion, sixty-seven million, seven hundred fifty thousand, one hundred sixty-one".