16006054210121 has 16 divisors (see below), whose sum is σ = 16664275344144. Its totient is φ = 15359719302144.

The previous prime is 16006054210109. The next prime is 16006054210123. The reversal of 16006054210121 is 12101245060061.

It can be written as a sum of positive squares in 8 ways, for example, as 787753878025 + 15218300332096 = 887555^2 + 3901064^2 .

It is not a de Polignac number, because 16006054210121 - 2¹⁸ = 16006053947977 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16006054210123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 178202195 + ... + 178291991.

It is an arithmetic number, because the mean of its divisors is an integer number (1041517209009).

Almost surely, 2^{16006054210121} is an apocalyptic number.

It is an amenable number.

16006054210121 is a deficient number, since it is larger than the sum of its proper divisors (658221134023).

16006054210121 is an equidigital number, since it uses as much as digits as its factorization.

16006054210121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155900.

The product of its (nonzero) digits is 2880, while the sum is 29.

Adding to 16006054210121 its reverse (12101245060061), we get a palindrome (28107299270182).

The spelling of 16006054210121 in words is "sixteen trillion, six billion, fifty-four million, two hundred ten thousand, one hundred twenty-one".