10655556220 has 48 divisors (see below), whose sum is σ = 23129568000. Its totient is φ = 4119183360.

The previous prime is 10655556211. The next prime is 10655556229. The reversal of 10655556220 is 2265555601.

It is an interprime number because it is at equal distance from previous prime (10655556211) and next prime (10655556229).

It is a super-2 number, since 2×10655556220² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 10655556220.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10655556229) 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, 465606 + ... + 487954.

It is an arithmetic number, because the mean of its divisors is an integer number (481866000).

Almost surely, 2^10655556220 is an apocalyptic number.

10655556220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 10655556220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11564784000).

10655556220 is an abundant number, since it is smaller than the sum of its proper divisors (12474011780).

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

10655556220 is a wasteful number, since it uses less digits than its factorization.

10655556220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23158 (or 23156 counting only the distinct ones).

The product of its (nonzero) digits is 90000, while the sum is 37.

The spelling of 10655556220 in words is "ten billion, six hundred fifty-five million, five hundred fifty-six thousand, two hundred twenty".