646211096 has 8 divisors (see below), whose sum is σ = 1211645820. Its totient is φ = 323105544.

The previous prime is 646211077. The next prime is 646211107. The reversal of 646211096 is 690112646.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40388186 + ... + 40388201.

Almost surely, 2^646211096 is an apocalyptic number.

It is an amenable number.

646211096 is a deficient number, since it is larger than the sum of its proper divisors (565434724).

646211096 is a wasteful number, since it uses less digits than its factorization.

646211096 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80776393 (or 80776389 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 35.

The square root of 646211096 is about 25420.6824455993. The cubic root of 646211096 is about 864.5526977775.

The spelling of 646211096 in words is "six hundred forty-six million, two hundred eleven thousand, ninety-six".