6640717464933 has 8 divisors (see below), whose sum is σ = 8854467995808. Its totient is φ = 4427055955344.

The previous prime is 6640717464917. The next prime is 6640717464961. The reversal of 6640717464933 is 3394647170466.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 6640717464933 - 2⁴ = 6640717464917 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6640717464833) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22081066 + ... + 22379787.

It is an arithmetic number, because the mean of its divisors is an integer number (1106808499476).

Almost surely, 2^{6640717464933} is an apocalyptic number.

It is an amenable number.

6640717464933 is a deficient number, since it is larger than the sum of its proper divisors (2213750530875).

6640717464933 is a wasteful number, since it uses less digits than its factorization.

6640717464933 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44510643.

The product of its (nonzero) digits is 54867456, while the sum is 60.

The spelling of 6640717464933 in words is "six trillion, six hundred forty billion, seven hundred seventeen million, four hundred sixty-four thousand, nine hundred thirty-three".