66345234 has 8 divisors (see below), whose sum is σ = 132690480. Its totient is φ = 22115076.

The previous prime is 66345229. The next prime is 66345263. The reversal of 66345234 is 43254366.

66345234 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

66345234 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 66345195 and 66345204.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5528764 + ... + 5528775.

It is an arithmetic number, because the mean of its divisors is an integer number (16586310).

Almost surely, 2^66345234 is an apocalyptic number.

66345234 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.

66345234 is a wasteful number, since it uses less digits than its factorization.

66345234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11057544.

The product of its digits is 51840, while the sum is 33.

The square root of 66345234 is about 8145.2583752758. The cubic root of 66345234 is about 404.8274100769.

The spelling of 66345234 in words is "sixty-six million, three hundred forty-five thousand, two hundred thirty-four".