662201020 has 48 divisors (see below), whose sum is σ = 1499470560. Its totient is φ = 244198656.

The previous prime is 662201003. The next prime is 662201021. The reversal of 662201020 is 20102266.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (662201021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 409734 + ... + 411346.

It is an arithmetic number, because the mean of its divisors is an integer number (31238970).

Almost surely, 2^662201020 is an apocalyptic number.

It is an amenable number.

662201020 is an abundant number, since it is smaller than the sum of its proper divisors (837269540).

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

662201020 is a wasteful number, since it uses less digits than its factorization.

662201020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3214 (or 3212 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 662201020 is about 25733.2667961143. The cubic root of 662201020 is about 871.6255423755.

Adding to 662201020 its reverse (20102266), we get a palindrome (682303286).

The spelling of 662201020 in words is "six hundred sixty-two million, two hundred one thousand, twenty".