20520100354344 has 64 divisors (see below), whose sum is σ = 52480086225600. Its totient is φ = 6684441325056.

The previous prime is 20520100354343. The next prime is 20520100354357. The reversal of 20520100354344 is 44345300102502.

It is not an unprimeable number, because it can be changed into a prime (20520100354343) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 53535574 + ... + 53917509.

It is an arithmetic number, because the mean of its divisors is an integer number (820001347275).

Almost surely, 2^{20520100354344} is an apocalyptic number.

20520100354344 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

20520100354344 is an abundant number, since it is smaller than the sum of its proper divisors (31959985871256).

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

20520100354344 is a wasteful number, since it uses less digits than its factorization.

20520100354344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107453274 (or 107453270 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 33.

Adding to 20520100354344 its reverse (44345300102502), we get a palindrome (64865400456846).

The spelling of 20520100354344 in words is "twenty trillion, five hundred twenty billion, one hundred million, three hundred fifty-four thousand, three hundred forty-four".