66627846 has 40 divisors (see below), whose sum is σ = 150139704. Its totient is φ = 22083840.

The previous prime is 66627809. The next prime is 66627863. The reversal of 66627846 is 64872666.

66627846 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 30201 + ... + 32331.

Almost surely, 2^66627846 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 66627846, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (75069852).

66627846 is an abundant number, since it is smaller than the sum of its proper divisors (83511858).

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

66627846 is a wasteful number, since it uses less digits than its factorization.

66627846 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2338 (or 2329 counting only the distinct ones).

The product of its digits is 580608, while the sum is 45.

The square root of 66627846 is about 8162.5881924791. The cubic root of 66627846 is about 405.4014127109.

The spelling of 66627846 in words is "sixty-six million, six hundred twenty-seven thousand, eight hundred forty-six".