2000161687 has 2 divisors, whose sum is σ = 2000161688. Its totient is φ = 2000161686.

The previous prime is 2000161643. The next prime is 2000161699. The reversal of 2000161687 is 7861610002.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2000161687 - 2¹¹ = 2000159639 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2000161607) 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 as a sum of consecutive naturals, namely, 1000080843 + 1000080844.

It is an arithmetic number, because the mean of its divisors is an integer number (1000080844).

Almost surely, 2^2000161687 is an apocalyptic number.

2000161687 is a deficient number, since it is larger than the sum of its proper divisors (1).

2000161687 is an equidigital number, since it uses as much as digits as its factorization.

2000161687 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4032, while the sum is 31.

The square root of 2000161687 is about 44723.1672290771. The cubic root of 2000161687 is about 1259.9550011224.

Adding to 2000161687 its reverse (7861610002), we get a palindrome (9861771689).

The spelling of 2000161687 in words is "two billion, one hundred sixty-one thousand, six hundred eighty-seven".