650106643 has 2 divisors, whose sum is σ = 650106644. Its totient is φ = 650106642.

The previous prime is 650106631. The next prime is 650106649. The reversal of 650106643 is 346601056.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 650106643 - 2¹³ = 650098451 is a prime.

It is not a weakly prime, because it can be changed into another prime (650106649) 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, 325053321 + 325053322.

It is an arithmetic number, because the mean of its divisors is an integer number (325053322).

Almost surely, 2^650106643 is an apocalyptic number.

650106643 is a deficient number, since it is larger than the sum of its proper divisors (1).

650106643 is an equidigital number, since it uses as much as digits as its factorization.

650106643 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12960, while the sum is 31.

The square root of 650106643 is about 25497.1889234872. The cubic root of 650106643 is about 866.2864762565.

Adding to 650106643 its reverse (346601056), we get a palindrome (996707699).

The spelling of 650106643 in words is "six hundred fifty million, one hundred six thousand, six hundred forty-three".