20344314656560 has 40 divisors (see below), whose sum is σ = 48192994446480. Its totient is φ = 7984183863552.

The previous prime is 20344314656483. The next prime is 20344314656569. The reversal of 20344314656560 is 6565641344302.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×20344314656560² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20344314656569) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2399089470 + ... + 2399097949.

It is an arithmetic number, because the mean of its divisors is an integer number (1204824861162).

Almost surely, 2^{20344314656560} is an apocalyptic number.

20344314656560 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20344314656560 is an abundant number, since it is smaller than the sum of its proper divisors (27848679789920).

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

20344314656560 is a wasteful number, since it uses less digits than its factorization.

20344314656560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4798187485 (or 4798187479 counting only the distinct ones).

The product of its (nonzero) digits is 6220800, while the sum is 49.

The spelling of 20344314656560 in words is "twenty trillion, three hundred forty-four billion, three hundred fourteen million, six hundred fifty-six thousand, five hundred sixty".