11720507216164 has 48 divisors (see below), whose sum is σ = 21807379052928. Its totient is φ = 5499472163328.

The previous prime is 11720507216129. The next prime is 11720507216177. The reversal of 11720507216164 is 46161270502711.

It is a self number, because there is not a number n which added to its sum of digits gives 11720507216164.

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, 233325619 + ... + 233375845.

It is an arithmetic number, because the mean of its divisors is an integer number (454320396936).

Almost surely, 2^{11720507216164} is an apocalyptic number.

It is an amenable number.

11720507216164 is a deficient number, since it is larger than the sum of its proper divisors (10086871836764).

11720507216164 is a wasteful number, since it uses less digits than its factorization.

11720507216164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98164 (or 98162 counting only the distinct ones).

The product of its (nonzero) digits is 141120, while the sum is 43.

Adding to 11720507216164 its reverse (46161270502711), we get a palindrome (57881777718875).

The spelling of 11720507216164 in words is "eleven trillion, seven hundred twenty billion, five hundred seven million, two hundred sixteen thousand, one hundred sixty-four".