16078245121 has 4 divisors (see below), whose sum is σ = 16135058992. Its totient is φ = 16021431252.

The previous prime is 16078245119. The next prime is 16078245133. The reversal of 16078245121 is 12154287061.

16078245121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 16078245121 - 2¹ = 16078245119 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16078240121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28406511 + ... + 28407076.

It is an arithmetic number, because the mean of its divisors is an integer number (4033764748).

Almost surely, 2^16078245121 is an apocalyptic number.

It is an amenable number.

16078245121 is a deficient number, since it is larger than the sum of its proper divisors (56813871).

16078245121 is an equidigital number, since it uses as much as digits as its factorization.

16078245121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56813870.

The product of its (nonzero) digits is 26880, while the sum is 37.

The spelling of 16078245121 in words is "sixteen billion, seventy-eight million, two hundred forty-five thousand, one hundred twenty-one".