12360036561 has 32 divisors (see below), whose sum is σ = 17070981120. Its totient is φ = 7950571200.

The previous prime is 12360036551. The next prime is 12360036569. The reversal of 12360036561 is 16563006321.

It is not a de Polignac number, because 12360036561 - 2⁷ = 12360036433 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12360036569) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3402216 + ... + 3405846.

It is an arithmetic number, because the mean of its divisors is an integer number (533468160).

Almost surely, 2^12360036561 is an apocalyptic number.

It is an amenable number.

12360036561 is a deficient number, since it is larger than the sum of its proper divisors (4710944559).

12360036561 is a wasteful number, since it uses less digits than its factorization.

12360036561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4037.

The product of its (nonzero) digits is 19440, while the sum is 33.

The spelling of 12360036561 in words is "twelve billion, three hundred sixty million, thirty-six thousand, five hundred sixty-one".