16546035234221 has 8 divisors (see below), whose sum is σ = 16969799246400. Its totient is φ = 16123233230560.

The previous prime is 16546035234203. The next prime is 16546035234227. The reversal of 16546035234221 is 12243253064561.

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 16546035234221 - 2³⁴ = 16528855365037 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 (16546035234227) 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, 240467291 + ... + 240536088.

It is an arithmetic number, because the mean of its divisors is an integer number (2121224905800).

Almost surely, 2^{16546035234221} is an apocalyptic number.

It is an amenable number.

16546035234221 is a deficient number, since it is larger than the sum of its proper divisors (423764012179).

16546035234221 is an equidigital number, since it uses as much as digits as its factorization.

16546035234221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 481004259.

The product of its (nonzero) digits is 1036800, while the sum is 44.

Adding to 16546035234221 its reverse (12243253064561), we get a palindrome (28789288298782).

The spelling of 16546035234221 in words is "sixteen trillion, five hundred forty-six billion, thirty-five million, two hundred thirty-four thousand, two hundred twenty-one".