6687692020 has 24 divisors (see below), whose sum is σ = 14128257024. Its totient is φ = 2659057056.

The previous prime is 6687692009. The next prime is 6687692051. The reversal of 6687692020 is 202967866.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 997812 + ... + 1004491.

It is an arithmetic number, because the mean of its divisors is an integer number (588677376).

Almost surely, 2^6687692020 is an apocalyptic number.

It is an amenable number.

6687692020 is an abundant number, since it is smaller than the sum of its proper divisors (7440565004).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6687692020 is a wasteful number, since it uses less digits than its factorization.

6687692020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2002479 (or 2002477 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 46.

The square root of 6687692020 is about 81778.3102050904. The cubic root of 6687692020 is about 1884.0485429017.

The spelling of 6687692020 in words is "six billion, six hundred eighty-seven million, six hundred ninety-two thousand, twenty".