2165071600187 has 2 divisors, whose sum is σ = 2165071600188. Its totient is φ = 2165071600186.

The previous prime is 2165071600163. The next prime is 2165071600243. The reversal of 2165071600187 is 7810061705612.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2165071600187 - 2¹⁴ = 2165071583803 is a prime.

It is not a weakly prime, because it can be changed into another prime (2165071600117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1082535800093 + 1082535800094.

It is an arithmetic number, because the mean of its divisors is an integer number (1082535800094).

Almost surely, 2^{2165071600187} is an apocalyptic number.

2165071600187 is a deficient number, since it is larger than the sum of its proper divisors (1).

2165071600187 is an equidigital number, since it uses as much as digits as its factorization.

2165071600187 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 141120, while the sum is 44.

The spelling of 2165071600187 in words is "two trillion, one hundred sixty-five billion, seventy-one million, six hundred thousand, one hundred eighty-seven".