220606654620 has 96 divisors (see below), whose sum is σ = 674270505216. Its totient is φ = 53447270400.

The previous prime is 220606654579. The next prime is 220606654627. The reversal of 220606654620 is 26456606022.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220606654627) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 971100 + ... + 1176540.

It is an arithmetic number, because the mean of its divisors is an integer number (7023651096).

Almost surely, 2^220606654620 is an apocalyptic number.

220606654620 is a gapful number since it is divisible by the number (20) 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 220606654620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (337135252608).

220606654620 is an abundant number, since it is smaller than the sum of its proper divisors (453663850596).

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

220606654620 is a wasteful number, since it uses less digits than its factorization.

220606654620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207091 (or 207089 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 39.

The spelling of 220606654620 in words is "two hundred twenty billion, six hundred six million, six hundred fifty-four thousand, six hundred twenty".