66425712 has 40 divisors (see below), whose sum is σ = 175595904. Its totient is φ = 21626304.

The previous prime is 66425687. The next prime is 66425713. The reversal of 66425712 is 21752466.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66425713) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14028 + ... + 18155.

Almost surely, 2^66425712 is an apocalyptic number.

It is an amenable number.

66425712 is an abundant number, since it is smaller than the sum of its proper divisors (109170192).

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

66425712 is a wasteful number, since it uses less digits than its factorization.

66425712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32237 (or 32231 counting only the distinct ones).

The product of its digits is 20160, while the sum is 33.

The square root of 66425712 is about 8150.1970528325. The cubic root of 66425712 is about 404.9910316563.

The spelling of 66425712 in words is "sixty-six million, four hundred twenty-five thousand, seven hundred twelve".