66002426 has 8 divisors (see below), whose sum is σ = 113147040. Its totient is φ = 28286748.

The previous prime is 66002407. The next prime is 66002459. The reversal of 66002426 is 62420066.

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

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 66002395 and 66002404.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2357216 + ... + 2357243.

It is an arithmetic number, because the mean of its divisors is an integer number (14143380).

Almost surely, 2^66002426 is an apocalyptic number.

66002426 is a deficient number, since it is larger than the sum of its proper divisors (47144614).

66002426 is a wasteful number, since it uses less digits than its factorization.

66002426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4714468.

The product of its (nonzero) digits is 3456, while the sum is 26.

The square root of 66002426 is about 8124.1877132425. The cubic root of 66002426 is about 404.1289535411.

The spelling of 66002426 in words is "sixty-six million, two thousand, four hundred twenty-six".