66426105 has 16 divisors (see below), whose sum is σ = 106473600. Its totient is φ = 35363328.

The previous prime is 66426103. The next prime is 66426121. The reversal of 66426105 is 50162466.

It is not a de Polignac number, because 66426105 - 2¹ = 66426103 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (66426103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5289 + ... + 12681.

It is an arithmetic number, because the mean of its divisors is an integer number (6654600).

Almost surely, 2^66426105 is an apocalyptic number.

It is an amenable number.

66426105 is a deficient number, since it is larger than the sum of its proper divisors (40047495).

66426105 is a wasteful number, since it uses less digits than its factorization.

66426105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8000.

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 66426105 is about 8150.2211626434. The cubic root of 66426105 is about 404.9918303488.

The spelling of 66426105 in words is "sixty-six million, four hundred twenty-six thousand, one hundred five".