20066758328 has 16 divisors (see below), whose sum is σ = 37634860680. Its totient is φ = 10030795488.

The previous prime is 20066758277. The next prime is 20066758339. The reversal of 20066758328 is 82385766002.

It is a happy number.

It is a congruent number.

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, 289751 + ... + 352262.

Almost surely, 2^20066758328 is an apocalyptic number.

It is an amenable number.

20066758328 is a deficient number, since it is larger than the sum of its proper divisors (17568102352).

20066758328 is a wasteful number, since it uses less digits than its factorization.

20066758328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 645926 (or 645922 counting only the distinct ones).

The product of its (nonzero) digits is 967680, while the sum is 47.

The spelling of 20066758328 in words is "twenty billion, sixty-six million, seven hundred fifty-eight thousand, three hundred twenty-eight".