2001650633 has 2 divisors, whose sum is σ = 2001650634. Its totient is φ = 2001650632.

The previous prime is 2001650621. The next prime is 2001650701. The reversal of 2001650633 is 3360561002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1315367824 + 686282809 = 36268^2 + 26197^2 .

It is a cyclic number.

It is not a de Polignac number, because 2001650633 - 2⁶ = 2001650569 is a prime.

It is not a weakly prime, because it can be changed into another prime (2001650033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1000825316 + 1000825317.

It is an arithmetic number, because the mean of its divisors is an integer number (1000825317).

Almost surely, 2^2001650633 is an apocalyptic number.

It is an amenable number.

2001650633 is a deficient number, since it is larger than the sum of its proper divisors (1).

2001650633 is an equidigital number, since it uses as much as digits as its factorization.

2001650633 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3240, while the sum is 26.

The square root of 2001650633 is about 44739.8103818065. The cubic root of 2001650633 is about 1260.2675657943.

The spelling of 2001650633 in words is "two billion, one million, six hundred fifty thousand, six hundred thirty-three".