2064446651 has 2 divisors, whose sum is σ = 2064446652. Its totient is φ = 2064446650.

The previous prime is 2064446647. The next prime is 2064446677. The reversal of 2064446651 is 1566444602.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2064446651 - 2² = 2064446647 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (2064446621) 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 as a sum of consecutive naturals, namely, 1032223325 + 1032223326.

It is an arithmetic number, because the mean of its divisors is an integer number (1032223326).

Almost surely, 2^2064446651 is an apocalyptic number.

2064446651 is a deficient number, since it is larger than the sum of its proper divisors (1).

2064446651 is an equidigital number, since it uses as much as digits as its factorization.

2064446651 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 138240, while the sum is 38.

The square root of 2064446651 is about 45436.1821789639. The cubic root of 2064446651 is about 1273.3111873031.

The spelling of 2064446651 in words is "two billion, sixty-four million, four hundred forty-six thousand, six hundred fifty-one".