12565004411422 has 8 divisors (see below), whose sum is σ = 18856359374400. Its totient is φ = 6279551286624.

The previous prime is 12565004411363. The next prime is 12565004411429. The reversal of 12565004411422 is 22411440056521.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12565004411429) 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, 1475454222 + ... + 1475462737.

It is an arithmetic number, because the mean of its divisors is an integer number (2357044921800).

Almost surely, 2^{12565004411422} is an apocalyptic number.

12565004411422 is a deficient number, since it is larger than the sum of its proper divisors (6291354962978).

12565004411422 is a wasteful number, since it uses less digits than its factorization.

12565004411422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2950919090.

The product of its (nonzero) digits is 76800, while the sum is 37.

Adding to 12565004411422 its reverse (22411440056521), we get a palindrome (34976444467943).

The spelling of 12565004411422 in words is "twelve trillion, five hundred sixty-five billion, four million, four hundred eleven thousand, four hundred twenty-two".