134444223320551 has 8 divisors (see below), whose sum is σ = 140768428520160. Its totient is φ = 128159918469792.

The previous prime is 134444223320527. The next prime is 134444223320599. The reversal of 134444223320551 is 155023322444431.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-134444223320551 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 134444223320498 and 134444223320507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134444223320521) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9975080316 + ... + 9975093793.

It is an arithmetic number, because the mean of its divisors is an integer number (17596053565020).

Almost surely, 2^{134444223320551} is an apocalyptic number.

134444223320551 is a deficient number, since it is larger than the sum of its proper divisors (6324205199609).

134444223320551 is a wasteful number, since it uses less digits than its factorization.

134444223320551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19950174425.

The product of its (nonzero) digits is 1382400, while the sum is 43.

Adding to 134444223320551 its reverse (155023322444431), we get a palindrome (289467545764982).

The spelling of 134444223320551 in words is "one hundred thirty-four trillion, four hundred forty-four billion, two hundred twenty-three million, three hundred twenty thousand, five hundred fifty-one".