66043896 has 16 divisors (see below), whose sum is σ = 165109800. Its totient is φ = 22014624.

The previous prime is 66043891. The next prime is 66043897. The reversal of 66043896 is 69834066.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66043891) 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, 1375891 + ... + 1375938.

Almost surely, 2^66043896 is an apocalyptic number.

It is an amenable number.

66043896 is an abundant number, since it is smaller than the sum of its proper divisors (99065904).

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

66043896 is a wasteful number, since it uses less digits than its factorization.

66043896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2751838 (or 2751834 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 42.

The square root of 66043896 is about 8126.7395676249. The cubic root of 66043896 is about 404.2135752737.

The spelling of 66043896 in words is "sixty-six million, forty-three thousand, eight hundred ninety-six".