20658741990600 has 144 divisors (see below), whose sum is σ = 74497953366000. Its totient is φ = 4721998162560.

The previous prime is 20658741990559. The next prime is 20658741990713. The reversal of 20658741990600 is 609914785602.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 351309750 + ... + 351368549.

It is an arithmetic number, because the mean of its divisors is an integer number (517346898375).

Almost surely, 2^{20658741990600} is an apocalyptic number.

20658741990600 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20658741990600 is an abundant number, since it is smaller than the sum of its proper divisors (53839211375400).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20658741990600 is a wasteful number, since it uses less digits than its factorization.

20658741990600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 702678332 (or 702678316 counting only the distinct ones).

The product of its (nonzero) digits is 6531840, while the sum is 57.

The spelling of 20658741990600 in words is "twenty trillion, six hundred fifty-eight billion, seven hundred forty-one million, nine hundred ninety thousand, six hundred".