20068488543447 has 16 divisors (see below), whose sum is σ = 29733910272000. Its totient is φ = 13377725102232.

The previous prime is 20068488543443. The next prime is 20068488543449. The reversal of 20068488543447 is 74434588486002.

It is a happy number.

20068488543447 is a `hidden beast` number, since 2 + 0 + 0 + 6 + 8 + 4 + 88 + 543 + 4 + 4 + 7 = 666.

It is not a de Polignac number, because 20068488543447 - 2² = 20068488543443 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20068488543443) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34911297 + ... + 35481482.

It is an arithmetic number, because the mean of its divisors is an integer number (1858369392000).

Almost surely, 2^{20068488543447} is an apocalyptic number.

20068488543447 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

20068488543447 is a deficient number, since it is larger than the sum of its proper divisors (9665421728553).

20068488543447 is a wasteful number, since it uses less digits than its factorization.

20068488543447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70403347 (or 70403341 counting only the distinct ones).

The product of its (nonzero) digits is 165150720, while the sum is 63.

The spelling of 20068488543447 in words is "twenty trillion, sixty-eight billion, four hundred eighty-eight million, five hundred forty-three thousand, four hundred forty-seven".