20730606508 has 24 divisors (see below), whose sum is σ = 36955296000. Its totient is φ = 10172539728.

The previous prime is 20730606499. The next prime is 20730606511. The reversal of 20730606508 is 80560603702.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 68041 + ... + 214687.

It is an arithmetic number, because the mean of its divisors is an integer number (1539804000).

Almost surely, 2^20730606508 is an apocalyptic number.

It is an amenable number.

20730606508 is a deficient number, since it is larger than the sum of its proper divisors (16224689492).

20730606508 is a wasteful number, since it uses less digits than its factorization.

20730606508 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147309 (or 147307 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 37.

The spelling of 20730606508 in words is "twenty billion, seven hundred thirty million, six hundred six thousand, five hundred eight".