12016779325 has 12 divisors (see below), whose sum is σ = 14978827008. Its totient is φ = 9563087600.

The previous prime is 12016779263. The next prime is 12016779347. The reversal of 12016779325 is 52397761021.

It is not a de Polignac number, because 12016779325 - 2¹¹ = 12016777277 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1253527 + ... + 1263076.

It is an arithmetic number, because the mean of its divisors is an integer number (1248235584).

Almost surely, 2^12016779325 is an apocalyptic number.

It is an amenable number.

12016779325 is a deficient number, since it is larger than the sum of its proper divisors (2962047683).

12016779325 is a wasteful number, since it uses less digits than its factorization.

12016779325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2516804 (or 2516799 counting only the distinct ones).

The product of its (nonzero) digits is 158760, while the sum is 43.

The spelling of 12016779325 in words is "twelve billion, sixteen million, seven hundred seventy-nine thousand, three hundred twenty-five".