20118705136068 has 96 divisors (see below), whose sum is σ = 58618165939200. Its totient is φ = 5217510579840.

The previous prime is 20118705136067. The next prime is 20118705136073. The reversal of 20118705136068 is 86063150781102.

It is a super-3 number, since 3×20118705136068³ (a number of 41 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (20118705136063) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16337043 + ... + 17525306.

It is an arithmetic number, because the mean of its divisors is an integer number (610605895200).

Almost surely, 2^{20118705136068} is an apocalyptic number.

20118705136068 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

20118705136068 is an abundant number, since it is smaller than the sum of its proper divisors (38499460803132).

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

20118705136068 is a wasteful number, since it uses less digits than its factorization.

20118705136068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33863017 (or 33863015 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 48.

The spelling of 20118705136068 in words is "twenty trillion, one hundred eighteen billion, seven hundred five million, one hundred thirty-six thousand, sixty-eight".