220163033664 has 840 divisors, whose sum is σ = 796483657728. Its totient is φ = 59883909120.

The previous prime is 220163033641. The next prime is 220163033669. The reversal of 220163033664 is 466330361022.

220163033664 is a `hidden beast` number, since 2 + 201 + 63 + 0 + 336 + 64 = 666.

It is a super-2 number, since 2×220163033664² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220163033669) by changing a digit.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 574838017 + ... + 574838399.

Almost surely, 2^220163033664 is an apocalyptic number.

220163033664 is a gapful number since it is divisible by the number (24) 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 220163033664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (398241828864).

220163033664 is an abundant number, since it is smaller than the sum of its proper divisors (576320624064).

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

220163033664 is a wasteful number, since it uses less digits than its factorization.

220163033664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 525 (or 499 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 36.

Adding to 220163033664 its reverse (466330361022), we get a palindrome (686493394686).

The spelling of 220163033664 in words is "two hundred twenty billion, one hundred sixty-three million, thirty-three thousand, six hundred sixty-four".