16016052121 has 8 divisors (see below), whose sum is σ = 16972480800. Its totient is φ = 15061213248.

The previous prime is 16016052119. The next prime is 16016052127. The reversal of 16016052121 is 12125061061.

It is a happy number.

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 16016052121 - 2¹ = 16016052119 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16016052127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 376671 + ... + 417028.

It is an arithmetic number, because the mean of its divisors is an integer number (2121560100).

Almost surely, 2^16016052121 is an apocalyptic number.

It is an amenable number.

16016052121 is a deficient number, since it is larger than the sum of its proper divisors (956428679).

16016052121 is a wasteful number, since it uses less digits than its factorization.

16016052121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 794903.

The product of its (nonzero) digits is 720, while the sum is 25.

The spelling of 16016052121 in words is "sixteen billion, sixteen million, fifty-two thousand, one hundred twenty-one".