66882270 has 64 divisors (see below), whose sum is σ = 197568000. Its totient is φ = 14110848.

The previous prime is 66882259. The next prime is 66882287. The reversal of 66882270 is 7228866.

It is a Harshad number since it is a multiple of its sum of digits (39).

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 31 ways as a sum of consecutive naturals, for example, 9520 + ... + 14979.

It is an arithmetic number, because the mean of its divisors is an integer number (3087000).

Almost surely, 2^66882270 is an apocalyptic number.

66882270 is an abundant number, since it is smaller than the sum of its proper divisors (130685730).

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

66882270 is a wasteful number, since it uses less digits than its factorization.

66882270 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24529.

The product of its (nonzero) digits is 64512, while the sum is 39.

The square root of 66882270 is about 8178.1581055883. The cubic root of 66882270 is about 405.9167770079.

The spelling of 66882270 in words is "sixty-six million, eight hundred eighty-two thousand, two hundred seventy".