6620667692 has 12 divisors (see below), whose sum is σ = 11641080696. Its totient is φ = 3294644640.

The previous prime is 6620667673. The next prime is 6620667701. The reversal of 6620667692 is 2967660266.

It is a self number, because there is not a number n which added to its sum of digits gives 6620667692.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 3921353 + ... + 3923040.

It is an arithmetic number, because the mean of its divisors is an integer number (970090058).

Almost surely, 2^6620667692 is an apocalyptic number.

It is an amenable number.

6620667692 is a deficient number, since it is larger than the sum of its proper divisors (5020413004).

6620667692 is a wasteful number, since it uses less digits than its factorization.

6620667692 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7844608 (or 7844606 counting only the distinct ones).

The product of its (nonzero) digits is 1959552, while the sum is 50.

The square root of 6620667692 is about 81367.4854717780. The cubic root of 6620667692 is about 1877.7333944602.

The spelling of 6620667692 in words is "six billion, six hundred twenty million, six hundred sixty-seven thousand, six hundred ninety-two".