20344523410140 has 48 divisors (see below), whose sum is σ = 56986089336960. Its totient is φ = 5423165881920.

The previous prime is 20344523410129. The next prime is 20344523410181. The reversal of 20344523410140 is 4101432544302.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 63600406 + ... + 63919485.

It is an arithmetic number, because the mean of its divisors is an integer number (1187210194520).

Almost surely, 2^{20344523410140} is an apocalyptic number.

20344523410140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20344523410140 is an abundant number, since it is smaller than the sum of its proper divisors (36641565926820).

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

20344523410140 is a wasteful number, since it uses less digits than its factorization.

20344523410140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127522562 (or 127522560 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 33.

Adding to 20344523410140 its reverse (4101432544302), we get a palindrome (24445955954442).

The spelling of 20344523410140 in words is "twenty trillion, three hundred forty-four billion, five hundred twenty-three million, four hundred ten thousand, one hundred forty".