20006662828 has 12 divisors (see below), whose sum is σ = 35014586040. Its totient is φ = 10002495392.

The previous prime is 20006662811. The next prime is 20006662849. The reversal of 20006662828 is 82826660002.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 153526 + ... + 252157.

It is an arithmetic number, because the mean of its divisors is an integer number (2917882170).

Almost surely, 2^20006662828 is an apocalyptic number.

It is an amenable number.

20006662828 is a deficient number, since it is larger than the sum of its proper divisors (15007923212).

20006662828 is a wasteful number, since it uses less digits than its factorization.

20006662828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 418016 (or 418014 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 40.

The spelling of 20006662828 in words is "twenty billion, six million, six hundred sixty-two thousand, eight hundred twenty-eight".