20145464231171 has 8 divisors (see below), whose sum is σ = 20149291578288. Its totient is φ = 20141637120000.

The previous prime is 20145464231149. The next prime is 20145464231183. The reversal of 20145464231171 is 17113246454102.

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 20145464231171 - 2¹⁰ = 20145464230147 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20145464231111) 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, 349712771 + ... + 349770371.

It is an arithmetic number, because the mean of its divisors is an integer number (2518661447286).

Almost surely, 2^{20145464231171} is an apocalyptic number.

20145464231171 is a deficient number, since it is larger than the sum of its proper divisors (3827347117).

20145464231171 is an equidigital number, since it uses as much as digits as its factorization.

20145464231171 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117973.

The product of its (nonzero) digits is 161280, while the sum is 41.

The spelling of 20145464231171 in words is "twenty trillion, one hundred forty-five billion, four hundred sixty-four million, two hundred thirty-one thousand, one hundred seventy-one".