16205632802447 has 12 divisors (see below), whose sum is σ = 18860614941168. Its totient is φ = 13865782075200.

The previous prime is 16205632802407. The next prime is 16205632802453. The reversal of 16205632802447 is 74420823650261.

It is a de Polignac number, because none of the positive numbers 2^k-16205632802447 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 16205632802395 and 16205632802404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16205632802407) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3939140579 + ... + 3939144692.

It is an arithmetic number, because the mean of its divisors is an integer number (1571717911764).

Almost surely, 2^{16205632802447} is an apocalyptic number.

16205632802447 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

16205632802447 is a deficient number, since it is larger than the sum of its proper divisors (2654982138721).

16205632802447 is a wasteful number, since it uses less digits than its factorization.

16205632802447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7878285310 (or 7878285299 counting only the distinct ones).

The product of its (nonzero) digits is 3870720, while the sum is 50.

The spelling of 16205632802447 in words is "sixteen trillion, two hundred five billion, six hundred thirty-two million, eight hundred two thousand, four hundred forty-seven".