134423661544 has 16 divisors (see below), whose sum is σ = 255234801600. Its totient is φ = 66361047792.

The previous prime is 134423661527. The next prime is 134423661577. The reversal of 134423661544 is 445166324431.

It is a self number, because there is not a number n which added to its sum of digits gives 134423661544.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 106347202 + ... + 106348465.

It is an arithmetic number, because the mean of its divisors is an integer number (15952175100).

Almost surely, 2^134423661544 is an apocalyptic number.

It is an amenable number.

134423661544 is a deficient number, since it is larger than the sum of its proper divisors (120811140056).

134423661544 is a wasteful number, since it uses less digits than its factorization.

134423661544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212695752 (or 212695748 counting only the distinct ones).

The product of its digits is 829440, while the sum is 43.

Adding to 134423661544 its reverse (445166324431), we get a palindrome (579589985975).

The spelling of 134423661544 in words is "one hundred thirty-four billion, four hundred twenty-three million, six hundred sixty-one thousand, five hundred forty-four".