20116241557720 has 128 divisors (see below), whose sum is σ = 56741745715200. Its totient is φ = 6235356326400.

The previous prime is 20116241557663. The next prime is 20116241557751. The reversal of 20116241557720 is 2775514261102.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17484640 + ... + 18599599.

It is an arithmetic number, because the mean of its divisors is an integer number (443294888400).

Almost surely, 2^{20116241557720} is an apocalyptic number.

20116241557720 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20116241557720 is an abundant number, since it is smaller than the sum of its proper divisors (36625504157480).

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

20116241557720 is a wasteful number, since it uses less digits than its factorization.

20116241557720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36084449 (or 36084445 counting only the distinct ones).

The product of its (nonzero) digits is 235200, while the sum is 43.

The spelling of 20116241557720 in words is "twenty trillion, one hundred sixteen billion, two hundred forty-one million, five hundred fifty-seven thousand, seven hundred twenty".