6646053033 has 12 divisors (see below), whose sum is σ = 9602555508. Its totient is φ = 4429455360.

The previous prime is 6646053019. The next prime is 6646053041. The reversal of 6646053033 is 3303506466.

It is a happy number.

6646053033 is a `hidden beast` number, since 6 + 64 + 60 + 530 + 3 + 3 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 9018009 + 6637035024 = 3003^2 + 81468^2 .

It is not a de Polignac number, because 6646053033 - 2¹⁸ = 6645790889 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (6646053013) 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, 69528 + ... + 134633.

It is an arithmetic number, because the mean of its divisors is an integer number (800212959).

Almost surely, 2^6646053033 is an apocalyptic number.

It is an amenable number.

6646053033 is a deficient number, since it is larger than the sum of its proper divisors (2956502475).

6646053033 is a wasteful number, since it uses less digits than its factorization.

6646053033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207784 (or 207781 counting only the distinct ones).

The product of its (nonzero) digits is 116640, while the sum is 36.

The square root of 6646053033 is about 81523.3281521308. The cubic root of 6646053033 is about 1880.1302377898.

Adding to 6646053033 its reverse (3303506466), we get a palindrome (9949559499).

The spelling of 6646053033 in words is "six billion, six hundred forty-six million, fifty-three thousand, thirty-three".