20330554658 has 6 divisors (see below), whose sum is σ = 30496134459. Its totient is φ = 10165176506.

The previous prime is 20330554597. The next prime is 20330554679. The reversal of 20330554658 is 85645503302.

It can be written as a sum of positive squares in only one way, i.e., 10165277329 + 10165277329 = 100823^2 + 100823^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=100823.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 151235 + ... + 252057.

Almost surely, 2^20330554658 is an apocalyptic number.

20330554658 is a deficient number, since it is larger than the sum of its proper divisors (10165579801).

20330554658 is an frugal number, since it uses more digits than its factorization.

20330554658 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201648 (or 100825 counting only the distinct ones).

The product of its (nonzero) digits is 432000, while the sum is 41.

The spelling of 20330554658 in words is "twenty billion, three hundred thirty million, five hundred fifty-four thousand, six hundred fifty-eight".