12117416653 has 4 divisors (see below), whose sum is σ = 12143364480. Its totient is φ = 12091468828.

The previous prime is 12117416609. The next prime is 12117416677. The reversal of 12117416653 is 35661471121.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12117416653 - 2¹⁷ = 12117285581 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12117416453) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12973213 + ... + 12974146.

It is an arithmetic number, because the mean of its divisors is an integer number (3035841120).

Almost surely, 2^12117416653 is an apocalyptic number.

It is an amenable number.

12117416653 is a deficient number, since it is larger than the sum of its proper divisors (25947827).

12117416653 is an equidigital number, since it uses as much as digits as its factorization.

12117416653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25947826.

The product of its digits is 30240, while the sum is 37.

Adding to 12117416653 its reverse (35661471121), we get a palindrome (47778887774).

The spelling of 12117416653 in words is "twelve billion, one hundred seventeen million, four hundred sixteen thousand, six hundred fifty-three".