66282270 has 16 divisors (see below), whose sum is σ = 159077520. Its totient is φ = 17675264.

The previous prime is 66282259. The next prime is 66282301. The reversal of 66282270 is 7228266.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1104675 + ... + 1104734.

It is an arithmetic number, because the mean of its divisors is an integer number (9942345).

Almost surely, 2^66282270 is an apocalyptic number.

66282270 is an abundant number, since it is smaller than the sum of its proper divisors (92795250).

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

66282270 is a wasteful number, since it uses less digits than its factorization.

66282270 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2209419.

The product of its (nonzero) digits is 16128, while the sum is 33.

The square root of 66282270 is about 8141.3923870552. The cubic root of 66282270 is about 404.6993043122.

The spelling of 66282270 in words is "sixty-six million, two hundred eighty-two thousand, two hundred seventy".