12015966069 has 12 divisors (see below), whose sum is σ = 17357835456. Its totient is φ = 8009979432.

The previous prime is 12015966037. The next prime is 12015966119. The reversal of 12015966069 is 96066951021.

It is a happy number.

12015966069 is a `hidden beast` number, since 1 + 20 + 15 + 9 + 6 + 606 + 9 = 666.

It is not a de Polignac number, because 12015966069 - 2⁵ = 12015966037 is a prime.

It is a super-2 number, since 2×12015966069² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12015962069) 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, 75364 + ... + 172370.

It is an arithmetic number, because the mean of its divisors is an integer number (1446486288).

Almost surely, 2^12015966069 is an apocalyptic number.

It is an amenable number.

12015966069 is a deficient number, since it is larger than the sum of its proper divisors (5341869387).

12015966069 is a wasteful number, since it uses less digits than its factorization.

12015966069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110776 (or 110773 counting only the distinct ones).

The product of its (nonzero) digits is 174960, while the sum is 45.

The spelling of 12015966069 in words is "twelve billion, fifteen million, nine hundred sixty-six thousand, sixty-nine".