16012560121 has 8 divisors (see below), whose sum is σ = 16060928000. Its totient is φ = 15964225200.

The previous prime is 16012560103. The next prime is 16012560131. The reversal of 16012560121 is 12106521061.

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 16012560121 - 2¹⁵ = 16012527353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16012560131) 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, 1244680 + ... + 1257478.

It is an arithmetic number, because the mean of its divisors is an integer number (2007616000).

Almost surely, 2^16012560121 is an apocalyptic number.

It is an amenable number.

16012560121 is a deficient number, since it is larger than the sum of its proper divisors (48367879).

16012560121 is a wasteful number, since it uses less digits than its factorization.

16012560121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16479.

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

The spelling of 16012560121 in words is "sixteen billion, twelve million, five hundred sixty thousand, one hundred twenty-one".