544541666125 has 8 divisors (see below), whose sum is σ = 679587999480. Its totient is φ = 435633332800.

The previous prime is 544541666117. The next prime is 544541666147. The reversal of 544541666125 is 521666145445.

It can be written as a sum of positive squares in 4 ways, for example, as 50123149924 + 494418516201 = 223882^2 + 703149^2 .

It is not a de Polignac number, because 544541666125 - 2³ = 544541666117 is a prime.

It is a super-2 number, since 2×544541666125² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2178166540 + ... + 2178166789.

It is an arithmetic number, because the mean of its divisors is an integer number (84948499935).

Almost surely, 2^544541666125 is an apocalyptic number.

It is an amenable number.

544541666125 is a deficient number, since it is larger than the sum of its proper divisors (135046333355).

544541666125 is an equidigital number, since it uses as much as digits as its factorization.

544541666125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4356333344 (or 4356333334 counting only the distinct ones).

The product of its digits is 3456000, while the sum is 49.

The spelling of 544541666125 in words is "five hundred forty-four billion, five hundred forty-one million, six hundred sixty-six thousand, one hundred twenty-five".