20663354120 has 32 divisors (see below), whose sum is σ = 46677798720. Its totient is φ = 8232408000.

The previous prime is 20663354111. The next prime is 20663354189. The reversal of 20663354120 is 2145336602.

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, 1019012 + ... + 1039091.

It is an arithmetic number, because the mean of its divisors is an integer number (1458681210).

Almost surely, 2^20663354120 is an apocalyptic number.

20663354120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20663354120 is an abundant number, since it is smaller than the sum of its proper divisors (26014444600).

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

20663354120 is a wasteful number, since it uses less digits than its factorization.

20663354120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2058365 (or 2058361 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 32.

The spelling of 20663354120 in words is "twenty billion, six hundred sixty-three million, three hundred fifty-four thousand, one hundred twenty".