6706406511 has 36 divisors (see below), whose sum is σ = 11290522152. Its totient is φ = 3824773344.

The previous prime is 6706406491. The next prime is 6706406521. The reversal of 6706406511 is 1156046076.

6706406511 is a `hidden beast` number, since 6 + 7 + 0 + 640 + 6 + 5 + 1 + 1 = 666.

It is not a de Polignac number, because 6706406511 - 2²⁶ = 6639297647 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6706406521) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 216105 + ... + 245181.

Almost surely, 2^6706406511 is an apocalyptic number.

6706406511 is a deficient number, since it is larger than the sum of its proper divisors (4584115641).

6706406511 is a wasteful number, since it uses less digits than its factorization.

6706406511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29620 (or 29610 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The square root of 6706406511 is about 81892.6523627120. The cubic root of 6706406511 is about 1885.8043141222.

The spelling of 6706406511 in words is "six billion, seven hundred six million, four hundred six thousand, five hundred eleven".