12045411665 has 32 divisors (see below), whose sum is σ = 17673987840. Its totient is φ = 7696684800.

The previous prime is 12045411643. The next prime is 12045411683. The reversal of 12045411665 is 56611454021.

It is not a de Polignac number, because 12045411665 - 2⁸ = 12045411409 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 107906 + ... + 189035.

It is an arithmetic number, because the mean of its divisors is an integer number (552312120).

Almost surely, 2^12045411665 is an apocalyptic number.

It is an amenable number.

12045411665 is a deficient number, since it is larger than the sum of its proper divisors (5628576175).

12045411665 is a wasteful number, since it uses less digits than its factorization.

12045411665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 297033.

The product of its (nonzero) digits is 28800, while the sum is 35.

Adding to 12045411665 its reverse (56611454021), we get a palindrome (68656865686).

The spelling of 12045411665 in words is "twelve billion, forty-five million, four hundred eleven thousand, six hundred sixty-five".