20727621645360 has 240 divisors, whose sum is σ = 74844595255392. Its totient is φ = 4731514368000.

The previous prime is 20727621645349. The next prime is 20727621645373. The reversal of 20727621645360 is 6354612672702.

It is a tau number, because it is divible by the number of its divisors (240).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 7791310 + ... + 10107410.

Almost surely, 2^{20727621645360} is an apocalyptic number.

20727621645360 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20727621645360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37422297627696).

20727621645360 is an abundant number, since it is smaller than the sum of its proper divisors (54116973610032).

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

20727621645360 is a wasteful number, since it uses less digits than its factorization.

20727621645360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2316892 (or 2316879 counting only the distinct ones).

The product of its (nonzero) digits is 5080320, while the sum is 51.

The spelling of 20727621645360 in words is "twenty trillion, seven hundred twenty-seven billion, six hundred twenty-one million, six hundred forty-five thousand, three hundred sixty".