13431366226 has 32 divisors (see below), whose sum is σ = 21105504000. Its totient is φ = 6404666112.

The previous prime is 13431366181. The next prime is 13431366229. The reversal of 13431366226 is 62266313431.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is not an unprimeable number, because it can be changed into a prime (13431366229) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 804330 + ... + 820858.

It is an arithmetic number, because the mean of its divisors is an integer number (659547000).

Almost surely, 2^13431366226 is an apocalyptic number.

13431366226 is a deficient number, since it is larger than the sum of its proper divisors (7674137774).

13431366226 is a wasteful number, since it uses less digits than its factorization.

13431366226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16786.

The product of its digits is 93312, while the sum is 37.

Adding to 13431366226 its reverse (62266313431), we get a palindrome (75697679657).

The spelling of 13431366226 in words is "thirteen billion, four hundred thirty-one million, three hundred sixty-six thousand, two hundred twenty-six".