6640082701 has 24 divisors (see below), whose sum is σ = 7967545664. Its totient is φ = 5419612800.

The previous prime is 6640082677. The next prime is 6640082723. The reversal of 6640082701 is 1072800466.

It is not a de Polignac number, because 6640082701 - 2²³ = 6631694093 is a prime.

It is a super-2 number, since 2×6640082701² = 88181396552238910802, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6640082731) 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 23 ways as a sum of consecutive naturals, for example, 422026 + ... + 437476.

Almost surely, 2^6640082701 is an apocalyptic number.

It is an amenable number.

6640082701 is a deficient number, since it is larger than the sum of its proper divisors (1327462963).

6640082701 is a wasteful number, since it uses less digits than its factorization.

6640082701 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15589 (or 15560 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 34.

The square root of 6640082701 is about 81486.7026023265. The cubic root of 6640082701 is about 1879.5670782429.

The spelling of 6640082701 in words is "six billion, six hundred forty million, eighty-two thousand, seven hundred one".