20343666053344 has 96 divisors (see below), whose sum is σ = 42499953387360. Its totient is φ = 9552649125888.

The previous prime is 20343666053309. The next prime is 20343666053357. The reversal of 20343666053344 is 44335066634302.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 771837414 + ... + 771863770.

It is an arithmetic number, because the mean of its divisors is an integer number (442707847785).

Almost surely, 2^{20343666053344} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20343666053344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21249976693680).

20343666053344 is an abundant number, since it is smaller than the sum of its proper divisors (22156287334016).

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

20343666053344 is a wasteful number, since it uses less digits than its factorization.

20343666053344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29420 (or 29412 counting only the distinct ones).

The product of its (nonzero) digits is 11197440, while the sum is 49.

The spelling of 20343666053344 in words is "twenty trillion, three hundred forty-three billion, six hundred sixty-six million, fifty-three thousand, three hundred forty-four".