20886485650448 has 80 divisors (see below), whose sum is σ = 44553282550272. Its totient is φ = 9484898825600.

The previous prime is 20886485650427. The next prime is 20886485650453. The reversal of 20886485650448 is 84405658468802.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22132865 + ... + 23057247.

Almost surely, 2^{20886485650448} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20886485650448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22276641275136).

20886485650448 is an abundant number, since it is smaller than the sum of its proper divisors (23666796899824).

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

20886485650448 is a wasteful number, since it uses less digits than its factorization.

20886485650448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 925485 (or 925457 counting only the distinct ones).

The product of its (nonzero) digits is 471859200, while the sum is 68.

The spelling of 20886485650448 in words is "twenty trillion, eight hundred eighty-six billion, four hundred eighty-five million, six hundred fifty thousand, four hundred forty-eight".