6646652136 has 48 divisors (see below), whose sum is σ = 18068321700. Its totient is φ = 2207308032.

The previous prime is 6646652113. The next prime is 6646652183. The reversal of 6646652136 is 6312566466.

6646652136 is a `hidden beast` number, since 6 + 6 + 466 + 52 + 136 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 4885171236 + 1761480900 = 69894^2 + 41970^2 .

It is a junction number, because it is equal to n+sod(n) for n = 6646652091 and 6646652100.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 152221 + ... + 190956.

Almost surely, 2^6646652136 is an apocalyptic number.

It is an amenable number.

6646652136 is an abundant number, since it is smaller than the sum of its proper divisors (11421669564).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6646652136 is a wasteful number, since it uses less digits than its factorization.

6646652136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 343458 (or 343451 counting only the distinct ones).

The product of its digits is 933120, while the sum is 45.

The square root of 6646652136 is about 81527.0024961055. The cubic root of 6646652136 is about 1880.1867303584.

The spelling of 6646652136 in words is "six billion, six hundred forty-six million, six hundred fifty-two thousand, one hundred thirty-six".