220666982 has 8 divisors (see below), whose sum is σ = 331865856. Its totient is φ = 110045032.

The previous prime is 220666967. The next prime is 220666993. The reversal of 220666982 is 289666022.

220666982 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 143273 + ... + 144804.

It is an arithmetic number, because the mean of its divisors is an integer number (41483232).

Almost surely, 2^220666982 is an apocalyptic number.

220666982 is a deficient number, since it is larger than the sum of its proper divisors (111198874).

220666982 is a wasteful number, since it uses less digits than its factorization.

220666982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 288462.

The product of its (nonzero) digits is 124416, while the sum is 41.

The square root of 220666982 is about 14854.8639172495. The cubic root of 220666982 is about 604.2905254827.

The spelling of 220666982 in words is "two hundred twenty million, six hundred sixty-six thousand, nine hundred eighty-two".