544551643061 has 2 divisors, whose sum is σ = 544551643062. Its totient is φ = 544551643060.

The previous prime is 544551643049. The next prime is 544551643091. The reversal of 544551643061 is 160346155445.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 513608722225 + 30942920836 = 716665^2 + 175906^2 .

It is a cyclic number.

It is not a de Polignac number, because 544551643061 - 2²⁶ = 544484534197 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (544551643091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 272275821530 + 272275821531.

It is an arithmetic number, because the mean of its divisors is an integer number (272275821531).

Almost surely, 2^544551643061 is an apocalyptic number.

It is an amenable number.

544551643061 is a deficient number, since it is larger than the sum of its proper divisors (1).

544551643061 is an equidigital number, since it uses as much as digits as its factorization.

544551643061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864000, while the sum is 44.

The spelling of 544551643061 in words is "five hundred forty-four billion, five hundred fifty-one million, six hundred forty-three thousand, sixty-one".