66302628 has 48 divisors (see below), whose sum is σ = 186117120. Its totient is φ = 17946144.

The previous prime is 66302611. The next prime is 66302651. The reversal of 66302628 is 82620366.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19176 + ... + 22367.

It is an arithmetic number, because the mean of its divisors is an integer number (3877440).

Almost surely, 2^66302628 is an apocalyptic number.

It is an amenable number.

66302628 is an abundant number, since it is smaller than the sum of its proper divisors (119814492).

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

66302628 is a wasteful number, since it uses less digits than its factorization.

66302628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41576 (or 41574 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 33.

The square root of 66302628 is about 8142.6425686014. The cubic root of 66302628 is about 404.7407333152.

The spelling of 66302628 in words is "sixty-six million, three hundred two thousand, six hundred twenty-eight".