220451555300 has 72 divisors (see below), whose sum is σ = 482543698560. Its totient is φ = 87414537600.

The previous prime is 220451555249. The next prime is 220451555309. The reversal of 220451555300 is 3555154022.

It is not an unprimeable number, because it can be changed into a prime (220451555309) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13052261 + ... + 13069139.

Almost surely, 2^220451555300 is an apocalyptic number.

220451555300 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 220451555300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (241271849280).

220451555300 is an abundant number, since it is smaller than the sum of its proper divisors (262092143260).

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

220451555300 is a wasteful number, since it uses less digits than its factorization.

220451555300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18021 (or 18014 counting only the distinct ones).

The product of its (nonzero) digits is 30000, while the sum is 32.

The spelling of 220451555300 in words is "two hundred twenty billion, four hundred fifty-one million, five hundred fifty-five thousand, three hundred".