16234566543261 has 16 divisors (see below), whose sum is σ = 26237683302720. Its totient is φ = 9839131238160.

The previous prime is 16234566543179. The next prime is 16234566543301.

16234566543261 is a `hidden beast` number, since 1 + 6 + 2 + 3 + 4 + 566 + 54 + 3 + 26 + 1 = 666.

16234566543261 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 16234566543261 - 2⁷ = 16234566543133 is a prime.

It is a super-2 number, since 2×16234566543261² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 16234566543198 and 16234566543207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16234566543361) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27330919810 + ... + 27330920403.

It is an arithmetic number, because the mean of its divisors is an integer number (1639855206420).

Almost surely, 2^{16234566543261} is an apocalyptic number.

16234566543261 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

16234566543261 is a deficient number, since it is larger than the sum of its proper divisors (10003116759459).

16234566543261 is a wasteful number, since it uses less digits than its factorization.

16234566543261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54661840233 (or 54661840227 counting only the distinct ones).

The product of its digits is 18662400, while the sum is 54.

The spelling of 16234566543261 in words is "sixteen trillion, two hundred thirty-four billion, five hundred sixty-six million, five hundred forty-three thousand, two hundred sixty-one".