12016953729 has 12 divisors (see below), whose sum is σ = 18935806032. Its totient is φ = 7283002200.

The previous prime is 12016953719. The next prime is 12016953733. The reversal of 12016953729 is 92735961021.

It is a happy number.

It is not a de Polignac number, because 12016953729 - 2⁴ = 12016953713 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12016953709) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 60691587 + ... + 60691784.

It is an arithmetic number, because the mean of its divisors is an integer number (1577983836).

Almost surely, 2^12016953729 is an apocalyptic number.

It is an amenable number.

12016953729 is a deficient number, since it is larger than the sum of its proper divisors (6918852303).

12016953729 is a wasteful number, since it uses less digits than its factorization.

12016953729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121383388 (or 121383385 counting only the distinct ones).

The product of its (nonzero) digits is 204120, while the sum is 45.

The spelling of 12016953729 in words is "twelve billion, sixteen million, nine hundred fifty-three thousand, seven hundred twenty-nine".