20006117285720 has 64 divisors (see below), whose sum is σ = 46592431718400. Its totient is φ = 7723201645440.

The previous prime is 20006117285681. The next prime is 20006117285731. The reversal of 20006117285720 is 2758271160002.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21525800 + ... + 22435959.

It is an arithmetic number, because the mean of its divisors is an integer number (728006745600).

Almost surely, 2^{20006117285720} is an apocalyptic number.

20006117285720 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20006117285720 is an abundant number, since it is smaller than the sum of its proper divisors (26586314432680).

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

20006117285720 is a wasteful number, since it uses less digits than its factorization.

20006117285720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43962168 (or 43962164 counting only the distinct ones).

The product of its (nonzero) digits is 94080, while the sum is 41.

The spelling of 20006117285720 in words is "twenty trillion, six billion, one hundred seventeen million, two hundred eighty-five thousand, seven hundred twenty".