20343342144 has 28 divisors (see below), whose sum is σ = 53825093264. Its totient is φ = 6781113984.

The previous prime is 20343342137. The next prime is 20343342209. The reversal of 20343342144 is 44124334302.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52977262 + ... + 52977645.

Almost surely, 2^20343342144 is an apocalyptic number.

20343342144 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

20343342144 is an abundant number, since it is smaller than the sum of its proper divisors (33481751120).

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

20343342144 is a wasteful number, since it uses less digits than its factorization.

20343342144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105954922 (or 105954912 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 30.

Adding to 20343342144 its reverse (44124334302), we get a palindrome (64467676446).

The spelling of 20343342144 in words is "twenty billion, three hundred forty-three million, three hundred forty-two thousand, one hundred forty-four".