20507720706116 has 12 divisors (see below), whose sum is σ = 41015441412288. Its totient is φ = 8789023159752.

The previous prime is 20507720706089. The next prime is 20507720706173. The reversal of 20507720706116 is 61160702770502.

20507720706116 is an admirable 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 3 ways as a sum of consecutive naturals, for example, 366209298296 + ... + 366209298351.

It is an arithmetic number, because the mean of its divisors is an integer number (3417953451024).

Almost surely, 2^{20507720706116} is an apocalyptic number.

It is an amenable number.

20507720706116 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

20507720706116 is a wasteful number, since it uses less digits than its factorization.

20507720706116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 732418596658 (or 732418596656 counting only the distinct ones).

The product of its (nonzero) digits is 246960, while the sum is 44.

The spelling of 20507720706116 in words is "twenty trillion, five hundred seven billion, seven hundred twenty million, seven hundred six thousand, one hundred sixteen".