20360142506447 has 8 divisors (see below), whose sum is σ = 20426396590080. Its totient is φ = 20293956623800.

The previous prime is 20360142506413. The next prime is 20360142506453. The reversal of 20360142506447 is 74460524106302.

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 20360142506447 - 2²⁴ = 20360125729231 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20360142506398 and 20360142506407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20360142506477) 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, 16452179 + ... + 17646372.

It is an arithmetic number, because the mean of its divisors is an integer number (2553299573760).

Almost surely, 2^{20360142506447} is an apocalyptic number.

20360142506447 is a deficient number, since it is larger than the sum of its proper divisors (66254083633).

20360142506447 is a wasteful number, since it uses less digits than its factorization.

20360142506447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34100493.

The product of its (nonzero) digits is 967680, while the sum is 44.

The spelling of 20360142506447 in words is "twenty trillion, three hundred sixty billion, one hundred forty-two million, five hundred six thousand, four hundred forty-seven".