20076766648 has 32 divisors (see below), whose sum is σ = 37803906000. Its totient is φ = 9995807232.

The previous prime is 20076766643. The next prime is 20076766649. The reversal of 20076766648 is 84666767002.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 20076766595 and 20076766604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20076766643) by changing a digit.

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, 2192736 + ... + 2201872.

Almost surely, 2^20076766648 is an apocalyptic number.

It is an amenable number.

20076766648 is a deficient number, since it is larger than the sum of its proper divisors (17727139352).

20076766648 is a wasteful number, since it uses less digits than its factorization.

20076766648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10279 (or 10275 counting only the distinct ones).

The product of its (nonzero) digits is 4064256, while the sum is 52.

The spelling of 20076766648 in words is "twenty billion, seventy-six million, seven hundred sixty-six thousand, six hundred forty-eight".