20344650601440 has 192 divisors, whose sum is σ = 70374611123712. Its totient is φ = 4899373824000.

The previous prime is 20344650601433. The next prime is 20344650601441. The reversal of 20344650601440 is 4410605644302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20344650601441) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 11961507 + ... + 13556066.

It is an arithmetic number, because the mean of its divisors is an integer number (366534432936).

Almost surely, 2^{20344650601440} is an apocalyptic number.

20344650601440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20344650601440 is an abundant number, since it is smaller than the sum of its proper divisors (50029960522272).

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

20344650601440 is a wasteful number, since it uses less digits than its factorization.

20344650601440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25517753 (or 25517745 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 39.

The spelling of 20344650601440 in words is "twenty trillion, three hundred forty-four billion, six hundred fifty million, six hundred one thousand, four hundred forty".