66627606 has 16 divisors (see below), whose sum is σ = 133431984. Its totient is φ = 22179744.

The previous prime is 66627601. The next prime is 66627647. The reversal of 66627606 is 60672666.

66627606 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 not an unprimeable number, because it can be changed into a prime (66627601) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 2185 + ... + 11748.

It is an arithmetic number, because the mean of its divisors is an integer number (8339499).

Almost surely, 2^66627606 is an apocalyptic number.

66627606 is an abundant number, since it is smaller than the sum of its proper divisors (66804378).

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

66627606 is a wasteful number, since it uses less digits than its factorization.

66627606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14735.

The product of its (nonzero) digits is 108864, while the sum is 39.

The square root of 66627606 is about 8162.5734912465. The cubic root of 66627606 is about 405.4009259452.

It can be divided in two parts, 6 and 6627606, that multiplied together give a square (39765636 = 6306²).

The spelling of 66627606 in words is "sixty-six million, six hundred twenty-seven thousand, six hundred six".