12165794911448 has 64 divisors (see below), whose sum is σ = 23461506144000. Its totient is φ = 5911583047552.

The previous prime is 12165794911397. The next prime is 12165794911483. The reversal of 12165794911448 is 84411949756121.

It is a happy number.

It is a super-2 number, since 2×12165794911448² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 525304493 + ... + 525327651.

It is an arithmetic number, because the mean of its divisors is an integer number (366586033500).

Almost surely, 2^{12165794911448} is an apocalyptic number.

It is an amenable number.

12165794911448 is a deficient number, since it is larger than the sum of its proper divisors (11295711232552).

12165794911448 is a wasteful number, since it uses less digits than its factorization.

12165794911448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34904 (or 34900 counting only the distinct ones).

The product of its digits is 17418240, while the sum is 62.

The spelling of 12165794911448 in words is "twelve trillion, one hundred sixty-five billion, seven hundred ninety-four million, nine hundred eleven thousand, four hundred forty-eight".