66730902 has 32 divisors (see below), whose sum is σ = 154047744. Its totient is φ = 18876000.

The previous prime is 66730897. The next prime is 66730913. The reversal of 66730902 is 20903766.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 3624 + ... + 12107.

It is an arithmetic number, because the mean of its divisors is an integer number (4813992).

Almost surely, 2^66730902 is an apocalyptic number.

66730902 is an abundant number, since it is smaller than the sum of its proper divisors (87316842).

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

66730902 is a wasteful number, since it uses less digits than its factorization.

66730902 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15844.

The product of its (nonzero) digits is 13608, while the sum is 33.

The square root of 66730902 is about 8168.8984569524. The cubic root of 66730902 is about 405.6103219911.

The spelling of 66730902 in words is "sixty-six million, seven hundred thirty thousand, nine hundred two".