6640262633 has 16 divisors (see below), whose sum is σ = 7335895680. Its totient is φ = 5982413184.

The previous prime is 6640262623. The next prime is 6640262639. The reversal of 6640262633 is 3362620466.

It is a cyclic number.

It is not a de Polignac number, because 6640262633 - 2¹⁶ = 6640197097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6640262639) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31685 + ... + 119517.

It is an arithmetic number, because the mean of its divisors is an integer number (458493480).

Almost surely, 2^6640262633 is an apocalyptic number.

It is an amenable number.

6640262633 is a deficient number, since it is larger than the sum of its proper divisors (695633047).

6640262633 is a wasteful number, since it uses less digits than its factorization.

6640262633 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88048.

The product of its (nonzero) digits is 186624, while the sum is 38.

The square root of 6640262633 is about 81487.8066522839. The cubic root of 6640262633 is about 1879.5840555018.

The spelling of 6640262633 in words is "six billion, six hundred forty million, two hundred sixty-two thousand, six hundred thirty-three".