20116717344042 has 16 divisors (see below), whose sum is σ = 43891019659872. Its totient is φ = 6095974952720.

The previous prime is 20116717343993. The next prime is 20116717344043. The reversal of 20116717344042 is 24044371761102.

It is a junction number, because it is equal to n+sod(n) for n = 20116717343985 and 20116717344003.

It is not an unprimeable number, because it can be changed into a prime (20116717344043) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 152399373753 + ... + 152399373884.

It is an arithmetic number, because the mean of its divisors is an integer number (2743188728742).

Almost surely, 2^{20116717344042} is an apocalyptic number.

20116717344042 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20116717344042 is an abundant number, since it is smaller than the sum of its proper divisors (23774302315830).

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

20116717344042 is a wasteful number, since it uses less digits than its factorization.

20116717344042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 304798747653.

The product of its (nonzero) digits is 225792, while the sum is 42.

The spelling of 20116717344042 in words is "twenty trillion, one hundred sixteen billion, seven hundred seventeen million, three hundred forty-four thousand, forty-two".