655220055105 has 48 divisors (see below), whose sum is σ = 1415956074624. Its totient is φ = 272299242240.

The previous prime is 655220055103. The next prime is 655220055167. The reversal of 655220055105 is 501550022556.

It is not a de Polignac number, because 655220055105 - 2¹ = 655220055103 is a prime.

It is a super-2 number, since 2×655220055105² (a number of 24 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 655220055105.

It is not an unprimeable number, because it can be changed into a prime (655220055103) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 94544884 + ... + 94551813.

It is an arithmetic number, because the mean of its divisors is an integer number (29499084888).

Almost surely, 2^655220055105 is an apocalyptic number.

It is an amenable number.

655220055105 is an abundant number, since it is smaller than the sum of its proper divisors (760736019519).

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

655220055105 is a wasteful number, since it uses less digits than its factorization.

655220055105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189096726 (or 189096723 counting only the distinct ones).

The product of its (nonzero) digits is 75000, while the sum is 36.

The spelling of 655220055105 in words is "six hundred fifty-five billion, two hundred twenty million, fifty-five thousand, one hundred five".