6650020807 has 2 divisors, whose sum is σ = 6650020808. Its totient is φ = 6650020806.

The previous prime is 6650020801. The next prime is 6650020813. The reversal of 6650020807 is 7080200566.

It is a balanced prime because it is at equal distance from previous prime (6650020801) and next prime (6650020813).

It is a cyclic number.

It is not a de Polignac number, because 6650020807 - 2²⁷ = 6515803079 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6650020801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3325010403 + 3325010404.

It is an arithmetic number, because the mean of its divisors is an integer number (3325010404).

Almost surely, 2^6650020807 is an apocalyptic number.

6650020807 is a deficient number, since it is larger than the sum of its proper divisors (1).

6650020807 is an equidigital number, since it uses as much as digits as its factorization.

6650020807 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20160, while the sum is 34.

The square root of 6650020807 is about 81547.6597273030. The cubic root of 6650020807 is about 1880.5043168496.

The spelling of 6650020807 in words is "six billion, six hundred fifty million, twenty thousand, eight hundred seven".