20169227285347 has 4 divisors (see below), whose sum is σ = 23050545468976. Its totient is φ = 17287909101720.

The previous prime is 20169227285323. The next prime is 20169227285359. The reversal of 20169227285347 is 74358272296102.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20169227285347 - 2⁷ = 20169227285219 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20169227285291 and 20169227285300.

It is not an unprimeable number, because it can be changed into a prime (20169227285047) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1440659091804 + ... + 1440659091817.

It is an arithmetic number, because the mean of its divisors is an integer number (5762636367244).

It is a 1-persistent number, because it is pandigital, but 2⋅20169227285347 = 40338454570694 is not.

Almost surely, 2^{20169227285347} is an apocalyptic number.

20169227285347 is a deficient number, since it is larger than the sum of its proper divisors (2881318183629).

20169227285347 is an equidigital number, since it uses as much as digits as its factorization.

20169227285347 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2881318183628.

The product of its (nonzero) digits is 20321280, while the sum is 58.

The spelling of 20169227285347 in words is "twenty trillion, one hundred sixty-nine billion, two hundred twenty-seven million, two hundred eighty-five thousand, three hundred forty-seven".