10660220 has 12 divisors (see below), whose sum is σ = 22386504. Its totient is φ = 4264080.

The previous prime is 10660217. The next prime is 10660229. The reversal of 10660220 is 2206601.

10660220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×10660220² = 227280580896800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10660229) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 266486 + ... + 266525.

It is an arithmetic number, because the mean of its divisors is an integer number (1865542).

Almost surely, 2^10660220 is an apocalyptic number.

10660220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10660220 is an abundant number, since it is smaller than the sum of its proper divisors (11726284).

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

10660220 is a wasteful number, since it uses less digits than its factorization.

10660220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 533020 (or 533018 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 10660220 is about 3264.9992343031. Note that the first 3 decimals coincide. The cubic root of 10660220 is about 220.0841276053.

Adding to 10660220 its reverse (2206601), we get a palindrome (12866821).

The spelling of 10660220 in words is "ten million, six hundred sixty thousand, two hundred twenty".