66426106 has 8 divisors (see below), whose sum is σ = 105500340. Its totient is φ = 31259328.

The previous prime is 66426103. The next prime is 66426121. The reversal of 66426106 is 60162466.

It can be written as a sum of positive squares in 2 ways, for example, as 54626881 + 11799225 = 7391^2 + 3435^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

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 3 ways as a sum of consecutive naturals, for example, 976821 + ... + 976888.

Almost surely, 2^66426106 is an apocalyptic number.

66426106 is a deficient number, since it is larger than the sum of its proper divisors (39074234).

66426106 is a wasteful number, since it uses less digits than its factorization.

66426106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1953728.

The product of its (nonzero) digits is 10368, while the sum is 31.

The square root of 66426106 is about 8150.2212239914. The cubic root of 66426106 is about 404.9918323811.

The spelling of 66426106 in words is "sixty-six million, four hundred twenty-six thousand, one hundred six".