16020171262543 has 8 divisors (see below), whose sum is σ = 18341637479712. Its totient is φ = 13706922626016.

The previous prime is 16020171262541. The next prime is 16020171262547. The reversal of 16020171262543 is 34526217102061.

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 16020171262543 - 2¹ = 16020171262541 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 16020171262496 and 16020171262505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16020171262541) 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, 2054390980 + ... + 2054398777.

It is an arithmetic number, because the mean of its divisors is an integer number (2292704684964).

Almost surely, 2^{16020171262543} is an apocalyptic number.

16020171262543 is a deficient number, since it is larger than the sum of its proper divisors (2321466217169).

16020171262543 is an equidigital number, since it uses as much as digits as its factorization.

16020171262543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4108790321.

The product of its (nonzero) digits is 120960, while the sum is 40.

The spelling of 16020171262543 in words is "sixteen trillion, twenty billion, one hundred seventy-one million, two hundred sixty-two thousand, five hundred forty-three".