66293416 has 16 divisors (see below), whose sum is σ = 142057440. Its totient is φ = 28411440.

The previous prime is 66293411. The next prime is 66293419. The reversal of 66293416 is 61439266.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (66293411) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 591850 + ... + 591961.

It is an arithmetic number, because the mean of its divisors is an integer number (8878590).

Almost surely, 2^66293416 is an apocalyptic number.

It is an amenable number.

66293416 is an abundant number, since it is smaller than the sum of its proper divisors (75764024).

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

66293416 is a wasteful number, since it uses less digits than its factorization.

66293416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1183824 (or 1183820 counting only the distinct ones).

The product of its digits is 46656, while the sum is 37.

The square root of 66293416 is about 8142.0768849232. The cubic root of 66293416 is about 404.7219877318.

The spelling of 66293416 in words is "sixty-six million, two hundred ninety-three thousand, four hundred sixteen".