16234166143261 has 12 divisors (see below), whose sum is σ = 18136693412572. Its totient is φ = 14516392968000.

The previous prime is 16234166143201. The next prime is 16234166143289.

16234166143261 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in 2 ways, for example, as 7512368356900 + 8721797786361 = 2740870^2 + 2953269^2 .

It is not a de Polignac number, because 16234166143261 - 2²¹ = 16234164046109 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16234166143201) 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, 1099719360 + ... + 1099734121.

Almost surely, 2^{16234166143261} is an apocalyptic number.

16234166143261 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

16234166143261 is a deficient number, since it is larger than the sum of its proper divisors (1902527269311).

16234166143261 is a wasteful number, since it uses less digits than its factorization.

16234166143261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2199453564 (or 2199453553 counting only the distinct ones).

The product of its digits is 746496, while the sum is 46.

It can be divided in two parts, 1623416 and 6143261, that added together give a palindrome (7766677).

The spelling of 16234166143261 in words is "sixteen trillion, two hundred thirty-four billion, one hundred sixty-six million, one hundred forty-three thousand, two hundred sixty-one".