20647008449088 has 224 divisors, whose sum is σ = 62549992857600. Its totient is φ = 5888063563776.

The previous prime is 20647008449059. The next prime is 20647008449099. The reversal of 20647008449088 is 88094480074602.

It is a tau number, because it is divible by the number of its divisors (224).

It is a super-2 number, since 2×20647008449088² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2702837973 + ... + 2702845611.

Almost surely, 2^{20647008449088} is an apocalyptic number.

20647008449088 is a gapful number since it is divisible by the number (28) 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 20647008449088, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31274996428800).

20647008449088 is an abundant number, since it is smaller than the sum of its proper divisors (41902984408512).

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

20647008449088 is a wasteful number, since it uses less digits than its factorization.

20647008449088 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11177 (or 11167 counting only the distinct ones).

The product of its (nonzero) digits is 24772608, while the sum is 60.

The spelling of 20647008449088 in words is "twenty trillion, six hundred forty-seven billion, eight million, four hundred forty-nine thousand, eighty-eight".