66073340 has 12 divisors (see below), whose sum is σ = 138754056. Its totient is φ = 26429328.

The previous prime is 66073331. The next prime is 66073391. The reversal of 66073340 is 4337066.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1651814 + ... + 1651853.

It is an arithmetic number, because the mean of its divisors is an integer number (11562838).

Almost surely, 2^66073340 is an apocalyptic number.

It is an amenable number.

66073340 is an abundant number, since it is smaller than the sum of its proper divisors (72680716).

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

66073340 is a wasteful number, since it uses less digits than its factorization.

66073340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3303676 (or 3303674 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 29.

The square root of 66073340 is about 8128.5509163688. The cubic root of 66073340 is about 404.2736358141.

The spelling of 66073340 in words is "sixty-six million, seventy-three thousand, three hundred forty".