66351028 has 12 divisors (see below), whose sum is σ = 118585152. Its totient is φ = 32469560.

The previous prime is 66351011. The next prime is 66351029. The reversal of 66351028 is 82015366.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66351029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 176278 + ... + 176653.

It is an arithmetic number, because the mean of its divisors is an integer number (9882096).

Almost surely, 2^66351028 is an apocalyptic number.

It is an amenable number.

66351028 is a deficient number, since it is larger than the sum of its proper divisors (52234124).

66351028 is a wasteful number, since it uses less digits than its factorization.

66351028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 352982 (or 352980 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 66351028 is about 8145.6140345587. The cubic root of 66351028 is about 404.8391944036.

The spelling of 66351028 in words is "sixty-six million, three hundred fifty-one thousand, twenty-eight".