6650106849 has 12 divisors (see below), whose sum is σ = 9609857556. Its totient is φ = 4431490272.

The previous prime is 6650106811. The next prime is 6650106917. The reversal of 6650106849 is 9486010566.

6650106849 is a `hidden beast` number, since 66 + 501 + 0 + 6 + 84 + 9 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 4216164624 + 2433942225 = 64932^2 + 49335^2 .

It is not a de Polignac number, because 6650106849 - 2⁷ = 6650106721 is a prime.

It is a super-2 number, since 2×6650106849² = 88447842206233417602, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (6650108849) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 137362 + ... + 179355.

It is an arithmetic number, because the mean of its divisors is an integer number (800821463).

Almost surely, 2^6650106849 is an apocalyptic number.

It is an amenable number.

6650106849 is a deficient number, since it is larger than the sum of its proper divisors (2959750707).

6650106849 is a wasteful number, since it uses less digits than its factorization.

6650106849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 319056 (or 319053 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 45.

The square root of 6650106849 is about 81548.1872821217. The cubic root of 6650106849 is about 1880.5124271828.

The spelling of 6650106849 in words is "six billion, six hundred fifty million, one hundred six thousand, eight hundred forty-nine".