646006126 has 8 divisors (see below), whose sum is σ = 974030544. Its totient is φ = 321329280.

The previous prime is 646006087. The next prime is 646006139. The reversal of 646006126 is 621600646.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 836410 + ... + 837181.

It is an arithmetic number, because the mean of its divisors is an integer number (121753818).

Almost surely, 2^646006126 is an apocalyptic number.

646006126 is a deficient number, since it is larger than the sum of its proper divisors (328024418).

646006126 is a wasteful number, since it uses less digits than its factorization.

646006126 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1673786.

The product of its (nonzero) digits is 10368, while the sum is 31.

The square root of 646006126 is about 25416.6505661151. The cubic root of 646006126 is about 864.4612797116.

The spelling of 646006126 in words is "six hundred forty-six million, six thousand, one hundred twenty-six".