12065706571 has 8 divisors (see below), whose sum is σ = 12464077824. Its totient is φ = 11667907560.

The previous prime is 12065706533. The next prime is 12065706589. The reversal of 12065706571 is 17560756021.

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 12065706571 - 2¹⁵ = 12065673803 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12065706511) 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, 99985 + ... + 184738.

It is an arithmetic number, because the mean of its divisors is an integer number (1558009728).

Almost surely, 2^12065706571 is an apocalyptic number.

12065706571 is a deficient number, since it is larger than the sum of its proper divisors (398371253).

12065706571 is a wasteful number, since it uses less digits than its factorization.

12065706571 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 286121.

The product of its (nonzero) digits is 88200, while the sum is 40.

The spelling of 12065706571 in words is "twelve billion, sixty-five million, seven hundred six thousand, five hundred seventy-one".