66054606 has 16 divisors (see below), whose sum is σ = 133418448. Its totient is φ = 21800000.

The previous prime is 66054601. The next prime is 66054613. The reversal of 66054606 is 60645066.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66054601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53895 + ... + 55106.

It is an arithmetic number, because the mean of its divisors is an integer number (8338653).

Almost surely, 2^66054606 is an apocalyptic number.

66054606 is an abundant number, since it is smaller than the sum of its proper divisors (67363842).

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

66054606 is a wasteful number, since it uses less digits than its factorization.

66054606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109107.

The product of its (nonzero) digits is 25920, while the sum is 33.

The square root of 66054606 is about 8127.3984767575. The cubic root of 66054606 is about 404.2354238404.

It can be divided in two parts, 6605 and 4606, that added together give a palindrome (11211).

The spelling of 66054606 in words is "sixty-six million, fifty-four thousand, six hundred six".