66342426 has 16 divisors (see below), whose sum is σ = 133177728. Its totient is φ = 22032000.

The previous prime is 66342407. The next prime is 66342431. The reversal of 66342426 is 62424366.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18775 + ... + 22026.

It is an arithmetic number, because the mean of its divisors is an integer number (8323608).

Almost surely, 2^66342426 is an apocalyptic number.

66342426 is an abundant number, since it is smaller than the sum of its proper divisors (66835302).

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

66342426 is a wasteful number, since it uses less digits than its factorization.

66342426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41077.

The product of its digits is 41472, while the sum is 33.

The square root of 66342426 is about 8145.0860032292. The cubic root of 66342426 is about 404.8216986824.

The spelling of 66342426 in words is "sixty-six million, three hundred forty-two thousand, four hundred twenty-six".