544145321601 has 12 divisors (see below), whose sum is σ = 898271642112. Its totient is φ = 310940183736.

The previous prime is 544145321597. The next prime is 544145321623. The reversal of 544145321601 is 106123541445.

544145321601 is a `hidden beast` number, since 5 + 4 + 4 + 1 + 45 + 3 + 2 + 1 + 601 = 666.

It is not a de Polignac number, because 544145321601 - 2² = 544145321597 is a prime.

It is not an unprimeable number, because it can be changed into a prime (544145326601) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4318613601 + ... + 4318613726.

It is an arithmetic number, because the mean of its divisors is an integer number (74855970176).

Almost surely, 2^544145321601 is an apocalyptic number.

It is an amenable number.

544145321601 is a deficient number, since it is larger than the sum of its proper divisors (354126320511).

544145321601 is a wasteful number, since it uses less digits than its factorization.

544145321601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8637227340 (or 8637227337 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 36.

The spelling of 544145321601 in words is "five hundred forty-four billion, one hundred forty-five million, three hundred twenty-one thousand, six hundred one".