66260572 has 24 divisors (see below), whose sum is σ = 132694016. Its totient is φ = 28360368.

The previous prime is 66260531. The next prime is 66260627. The reversal of 66260572 is 27506266.

It is a happy number.

It is a congruent number.

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, 39013 + ... + 40675.

Almost surely, 2^66260572 is an apocalyptic number.

It is an amenable number.

66260572 is an abundant number, since it is smaller than the sum of its proper divisors (66433444).

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

66260572 is a wasteful number, since it uses less digits than its factorization.

66260572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3097 (or 3095 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 34.

The square root of 66260572 is about 8140.0597049407. The cubic root of 66260572 is about 404.6551390381.

The spelling of 66260572 in words is "sixty-six million, two hundred sixty thousand, five hundred seventy-two".