2161850633 has 2 divisors, whose sum is σ = 2161850634. Its totient is φ = 2161850632.

The previous prime is 2161850597. The next prime is 2161850651. The reversal of 2161850633 is 3360581612.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2161506064 + 344569 = 46492^2 + 587^2 .

It is a cyclic number.

It is not a de Polignac number, because 2161850633 - 2⁸ = 2161850377 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2161850593 and 2161850602.

It is not a weakly prime, because it can be changed into another prime (2161850833) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1080925316 + 1080925317.

It is an arithmetic number, because the mean of its divisors is an integer number (1080925317).

Almost surely, 2^2161850633 is an apocalyptic number.

It is an amenable number.

2161850633 is a deficient number, since it is larger than the sum of its proper divisors (1).

2161850633 is an equidigital number, since it uses as much as digits as its factorization.

2161850633 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 25920, while the sum is 35.

The square root of 2161850633 is about 46495.7055328769. The cubic root of 2161850633 is about 1293.0298815934.

The spelling of 2161850633 in words is "two billion, one hundred sixty-one million, eight hundred fifty thousand, six hundred thirty-three".