12612501164261 has 8 divisors (see below), whose sum is σ = 12684821058720. Its totient is φ = 12540201925648.

The previous prime is 12612501164257. The next prime is 12612501164267. The reversal of 12612501164261 is 16246110521621.

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

It is a cyclic number.

It is not a de Polignac number, because 12612501164261 - 2² = 12612501164257 is a prime.

It is a super-2 number, since 2×12612501164261² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12612501164267) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3938426 + ... + 6382491.

It is an arithmetic number, because the mean of its divisors is an integer number (1585602632340).

Almost surely, 2^{12612501164261} is an apocalyptic number.

It is an amenable number.

12612501164261 is a deficient number, since it is larger than the sum of its proper divisors (72319894459).

12612501164261 is a wasteful number, since it uses less digits than its factorization.

12612501164261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10327923.

The product of its (nonzero) digits is 34560, while the sum is 38.

Adding to 12612501164261 its reverse (16246110521621), we get a palindrome (28858611685882).

The spelling of 12612501164261 in words is "twelve trillion, six hundred twelve billion, five hundred one million, one hundred sixty-four thousand, two hundred sixty-one".