220666350 has 48 divisors (see below), whose sum is σ = 548714880. Its totient is φ = 58687200.

The previous prime is 220666343. The next prime is 220666351. The reversal of 220666350 is 53666022.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220666351) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 61095 + ... + 64605.

It is an arithmetic number, because the mean of its divisors is an integer number (11431560).

Almost surely, 2^220666350 is an apocalyptic number.

220666350 is an abundant number, since it is smaller than the sum of its proper divisors (328048530).

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

220666350 is a wasteful number, since it uses less digits than its factorization.

220666350 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3945 (or 3940 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 30.

The square root of 220666350 is about 14854.8426447405. The cubic root of 220666350 is about 604.2899485772.

The spelling of 220666350 in words is "two hundred twenty million, six hundred sixty-six thousand, three hundred fifty".