13620220350 has 96 divisors (see below), whose sum is σ = 37187441280. Its totient is φ = 3271536000.

The previous prime is 13620220337. The next prime is 13620220363. The reversal of 13620220350 is 5302202631.

It is an interprime number because it is at equal distance from previous prime (13620220337) and next prime (13620220363).

It is a self number, because there is not a number n which added to its sum of digits gives 13620220350.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 141985 + ... + 217715.

It is an arithmetic number, because the mean of its divisors is an integer number (387369180).

Almost surely, 2^13620220350 is an apocalyptic number.

13620220350 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 13620220350, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18593720640).

13620220350 is an abundant number, since it is smaller than the sum of its proper divisors (23567220930).

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

13620220350 is a wasteful number, since it uses less digits than its factorization.

13620220350 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75866 (or 75861 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 24.

Adding to 13620220350 its reverse (5302202631), we get a palindrome (18922422981).

The spelling of 13620220350 in words is "thirteen billion, six hundred twenty million, two hundred twenty thousand, three hundred fifty".