2046664651 has 2 divisors, whose sum is σ = 2046664652. Its totient is φ = 2046664650.

The previous prime is 2046664603. The next prime is 2046664661. The reversal of 2046664651 is 1564666402.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2046664651 - 2⁷ = 2046664523 is a prime.

It is not a weakly prime, because it can be changed into another prime (2046664661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1023332325 + 1023332326.

It is an arithmetic number, because the mean of its divisors is an integer number (1023332326).

Almost surely, 2^2046664651 is an apocalyptic number.

2046664651 is a deficient number, since it is larger than the sum of its proper divisors (1).

2046664651 is an equidigital number, since it uses as much as digits as its factorization.

2046664651 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 207360, while the sum is 40.

The square root of 2046664651 is about 45240.0779287569. The cubic root of 2046664651 is about 1269.6447744806.

The spelling of 2046664651 in words is "two billion, forty-six million, six hundred sixty-four thousand, six hundred fifty-one".