144397381121055 has 12 divisors (see below), whose sum is σ = 250288793943240. Its totient is φ = 77011936597872.

The previous prime is 144397381121047. The next prime is 144397381121083. The reversal of 144397381121055 is 550121183793441.

It is a happy number.

144397381121055 is a `hidden beast` number, since 1 + 4 + 4 + 3 + 97 + 381 + 121 + 0 + 55 = 666.

It is not a de Polignac number, because 144397381121055 - 2³ = 144397381121047 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 144397381120992 and 144397381121010.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1604415345745 + ... + 1604415345834.

It is an arithmetic number, because the mean of its divisors is an integer number (20857399495270).

Almost surely, 2^{144397381121055} is an apocalyptic number.

144397381121055 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

144397381121055 is a deficient number, since it is larger than the sum of its proper divisors (105891412822185).

144397381121055 is a wasteful number, since it uses less digits than its factorization.

144397381121055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3208830691590 (or 3208830691587 counting only the distinct ones).

The product of its (nonzero) digits is 3628800, while the sum is 54.

The spelling of 144397381121055 in words is "one hundred forty-four trillion, three hundred ninety-seven billion, three hundred eighty-one million, one hundred twenty-one thousand, fifty-five".