66312426 has 8 divisors (see below), whose sum is σ = 132624864. Its totient is φ = 22104140.

The previous prime is 66312419. The next prime is 66312431. The reversal of 66312426 is 62421366.

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

66312426 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 66312393 and 66312402.

It is an unprimeable number.

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, 5526030 + ... + 5526041.

It is an arithmetic number, because the mean of its divisors is an integer number (16578108).

Almost surely, 2^66312426 is an apocalyptic number.

66312426 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

66312426 is a wasteful number, since it uses less digits than its factorization.

66312426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11052076.

The product of its digits is 10368, while the sum is 30.

The square root of 66312426 is about 8143.2441938088. The cubic root of 66312426 is about 404.7606694500.

The spelling of 66312426 in words is "sixty-six million, three hundred twelve thousand, four hundred twenty-six".