66089360 has 40 divisors (see below), whose sum is σ = 154144896. Its totient is φ = 26352000.

The previous prime is 66089351. The next prime is 66089377. The reversal of 66089360 is 6398066.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

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, 28235 + ... + 30485.

Almost surely, 2^66089360 is an apocalyptic number.

It is an amenable number.

66089360 is an abundant number, since it is smaller than the sum of its proper divisors (88055536).

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

66089360 is a wasteful number, since it uses less digits than its factorization.

66089360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2631 (or 2625 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 38.

The square root of 66089360 is about 8129.5362721375. The cubic root of 66089360 is about 404.3063062795.

The spelling of 66089360 in words is "sixty-six million, eighty-nine thousand, three hundred sixty".