131226211664 has 20 divisors (see below), whose sum is σ = 254257699680. Its totient is φ = 65611321440.

The previous prime is 131226211643. The next prime is 131226211681. The reversal of 131226211664 is 466112622131.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 654719 + ... + 831329.

It is an arithmetic number, because the mean of its divisors is an integer number (12712884984).

Almost surely, 2^131226211664 is an apocalyptic number.

It is an amenable number.

131226211664 is a deficient number, since it is larger than the sum of its proper divisors (123031488016).

131226211664 is a wasteful number, since it uses less digits than its factorization.

131226211664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 223058 (or 223052 counting only the distinct ones).

The product of its digits is 20736, while the sum is 35.

Adding to 131226211664 its reverse (466112622131), we get a palindrome (597338833795).

The spelling of 131226211664 in words is "one hundred thirty-one billion, two hundred twenty-six million, two hundred eleven thousand, six hundred sixty-four".