66634054 has 16 divisors (see below), whose sum is σ = 103672800. Its totient is φ = 32082624.

The previous prime is 66634037. The next prime is 66634081. The reversal of 66634054 is 45043666.

66634054 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 7 ways as a sum of consecutive naturals, for example, 24154 + ... + 26770.

It is an arithmetic number, because the mean of its divisors is an integer number (6479550).

Almost surely, 2^66634054 is an apocalyptic number.

66634054 is a deficient number, since it is larger than the sum of its proper divisors (37038746).

66634054 is a wasteful number, since it uses less digits than its factorization.

66634054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3087.

The product of its (nonzero) digits is 51840, while the sum is 34.

The square root of 66634054 is about 8162.9684551638. The cubic root of 66634054 is about 405.4140033116.

The spelling of 66634054 in words is "sixty-six million, six hundred thirty-four thousand, fifty-four".