20116165137064 has 128 divisors (see below), whose sum is σ = 40247180052480. Its totient is φ = 9393171840000.

The previous prime is 20116165136981. The next prime is 20116165137077. The reversal of 20116165137064 is 46073156161102.

It is a self number, because there is not a number n which added to its sum of digits gives 20116165137064.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12804687399 + ... + 12804688969.

It is an arithmetic number, because the mean of its divisors is an integer number (314431094160).

Almost surely, 2^{20116165137064} is an apocalyptic number.

It is an amenable number.

20116165137064 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

20116165137064 is a wasteful number, since it uses less digits than its factorization.

20116165137064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3071 (or 3067 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 43.

The spelling of 20116165137064 in words is "twenty trillion, one hundred sixteen billion, one hundred sixty-five million, one hundred thirty-seven thousand, sixty-four".