12335402561 has 8 divisors (see below), whose sum is σ = 13057524480. Its totient is φ = 11633064912.

The previous prime is 12335402539. The next prime is 12335402587. The reversal of 12335402561 is 16520453321.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12335402561 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12331402561) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4944785 + ... + 4947278.

It is an arithmetic number, because the mean of its divisors is an integer number (1632190560).

Almost surely, 2^12335402561 is an apocalyptic number.

It is an amenable number.

12335402561 is a deficient number, since it is larger than the sum of its proper divisors (722121919).

12335402561 is an equidigital number, since it uses as much as digits as its factorization.

12335402561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9892135.

The product of its (nonzero) digits is 21600, while the sum is 32.

Adding to 12335402561 its reverse (16520453321), we get a palindrome (28855855882).

The spelling of 12335402561 in words is "twelve billion, three hundred thirty-five million, four hundred two thousand, five hundred sixty-one".