10655343220 has 24 divisors (see below), whose sum is σ = 22921984008. Its totient is φ = 4158182400.

The previous prime is 10655343217. The next prime is 10655343221. The reversal of 10655343220 is 2234355601.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 793661584 + 9861681636 = 28172^2 + 99306^2 .

It is a super-2 number, since 2×10655343220² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10655343221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6496341 + ... + 6497980.

It is an arithmetic number, because the mean of its divisors is an integer number (955082667).

Almost surely, 2^10655343220 is an apocalyptic number.

10655343220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10655343220 is an abundant number, since it is smaller than the sum of its proper divisors (12266640788).

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

10655343220 is a wasteful number, since it uses less digits than its factorization.

10655343220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12994371 (or 12994369 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 31.

Adding to 10655343220 its reverse (2234355601), we get a palindrome (12889698821).

The spelling of 10655343220 in words is "ten billion, six hundred fifty-five million, three hundred forty-three thousand, two hundred twenty".