6680699831 has 16 divisors (see below), whose sum is σ = 7621133184. Its totient is φ = 5801516544.

The previous prime is 6680699791. The next prime is 6680699863. The reversal of 6680699831 is 1389960866.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6680699831 is a prime.

It is a super-2 number, since 2×6680699831² = 89263500463846857122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6680699891) 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, 648386 + ... + 658608.

It is an arithmetic number, because the mean of its divisors is an integer number (476320824).

Almost surely, 2^6680699831 is an apocalyptic number.

6680699831 is a deficient number, since it is larger than the sum of its proper divisors (940433353).

6680699831 is a wasteful number, since it uses less digits than its factorization.

6680699831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13210.

The product of its (nonzero) digits is 3359232, while the sum is 56.

The square root of 6680699831 is about 81735.5481476695. The cubic root of 6680699831 is about 1883.3917035781.

The spelling of 6680699831 in words is "six billion, six hundred eighty million, six hundred ninety-nine thousand, eight hundred thirty-one".