244161215220 has 192 divisors, whose sum is σ = 743279040000. Its totient is φ = 59529406464.

The previous prime is 244161215219. The next prime is 244161215237. The reversal of 244161215220 is 22512161442.

It is a super-2 number, since 2×244161215220² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 35541946 + ... + 35548814.

It is an arithmetic number, because the mean of its divisors is an integer number (3871245000).

Almost surely, 2^244161215220 is an apocalyptic number.

244161215220 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 244161215220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (371639520000).

244161215220 is an abundant number, since it is smaller than the sum of its proper divisors (499117824780).

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

244161215220 is a wasteful number, since it uses less digits than its factorization.

244161215220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7322 (or 7320 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 30.

Adding to 244161215220 its reverse (22512161442), we get a palindrome (266673376662).

The spelling of 244161215220 in words is "two hundred forty-four billion, one hundred sixty-one million, two hundred fifteen thousand, two hundred twenty".