66625014 has 32 divisors (see below), whose sum is σ = 138378240. Its totient is φ = 21362400.

The previous prime is 66625007. The next prime is 66625037. The reversal of 66625014 is 41052666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32677 + ... + 34655.

It is an arithmetic number, because the mean of its divisors is an integer number (4324320).

Almost surely, 2^66625014 is an apocalyptic number.

66625014 is an abundant number, since it is smaller than the sum of its proper divisors (71753226).

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

66625014 is a wasteful number, since it uses less digits than its factorization.

66625014 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2196.

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 66625014 is about 8162.4147162467. The cubic root of 66625014 is about 405.3956688009.

The spelling of 66625014 in words is "sixty-six million, six hundred twenty-five thousand, fourteen".