12086571501 has 6 divisors (see below), whose sum is σ = 17458381070. Its totient is φ = 8057714328.

The previous prime is 12086571491. The next prime is 12086571503. The reversal of 12086571501 is 10517568021.

12086571501 is a `hidden beast` number, since 1 + 2 + 0 + 86 + 5 + 71 + 501 = 666.

It can be written as a sum of positive squares in only one way, i.e., 9317075625 + 2769495876 = 96525^2 + 52626^2 .

It is not a de Polignac number, because 12086571501 - 2⁷ = 12086571373 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12086571503) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 671476186 + ... + 671476203.

Almost surely, 2^12086571501 is an apocalyptic number.

It is an amenable number.

12086571501 is a deficient number, since it is larger than the sum of its proper divisors (5371809569).

12086571501 is a wasteful number, since it uses less digits than its factorization.

12086571501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1342952395 (or 1342952392 counting only the distinct ones).

The product of its (nonzero) digits is 16800, while the sum is 36.

The spelling of 12086571501 in words is "twelve billion, eighty-six million, five hundred seventy-one thousand, five hundred one".