220531662 has 48 divisors (see below), whose sum is σ = 516389328. Its totient is φ = 67616640.

The previous prime is 220531657. The next prime is 220531691. The reversal of 220531662 is 266135022.

220531662 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 71737 + ... + 74747.

It is an arithmetic number, because the mean of its divisors is an integer number (10758111).

Almost surely, 2^220531662 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 220531662, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (258194664).

220531662 is an abundant number, since it is smaller than the sum of its proper divisors (295857666).

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

220531662 is a wasteful number, since it uses less digits than its factorization.

220531662 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3345 (or 3342 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 220531662 is about 14850.3084816444. The cubic root of 220531662 is about 604.1669768454.

Adding to 220531662 its reverse (266135022), we get a palindrome (486666684).

The spelling of 220531662 in words is "two hundred twenty million, five hundred thirty-one thousand, six hundred sixty-two".