20116042651543 has 8 divisors (see below), whose sum is σ = 20617932244896. Its totient is φ = 19614688982400.

The previous prime is 20116042651511. The next prime is 20116042651637. The reversal of 20116042651543 is 34515624061102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20116042651543 - 2⁵ = 20116042651511 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20116042651496 and 20116042651505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20116042651643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 133905046 + ... + 134055187.

It is an arithmetic number, because the mean of its divisors is an integer number (2577241530612).

Almost surely, 2^{20116042651543} is an apocalyptic number.

20116042651543 is a deficient number, since it is larger than the sum of its proper divisors (501889593353).

20116042651543 is a wasteful number, since it uses less digits than its factorization.

20116042651543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 267962105.

The product of its (nonzero) digits is 172800, while the sum is 40.

The spelling of 20116042651543 in words is "twenty trillion, one hundred sixteen billion, forty-two million, six hundred fifty-one thousand, five hundred forty-three".