20488605696 has 208 divisors, whose sum is σ = 65373353920. Its totient is φ = 6303744000.

The previous prime is 20488605637. The next prime is 20488605701. The reversal of 20488605696 is 69650688402.

It is a happy number.

20488605696 is a `hidden beast` number, since 20 + 4 + 8 + 8 + 605 + 6 + 9 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (208).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

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, 1430571 + ... + 1444821.

Almost surely, 2^20488605696 is an apocalyptic number.

20488605696 is a gapful number since it is divisible by the number (26) 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 20488605696, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32686676960).

20488605696 is an abundant number, since it is smaller than the sum of its proper divisors (44884748224).

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

20488605696 is a wasteful number, since it uses less digits than its factorization.

20488605696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14297 (or 14269 counting only the distinct ones).

The product of its (nonzero) digits is 4976640, while the sum is 54.

The spelling of 20488605696 in words is "twenty billion, four hundred eighty-eight million, six hundred five thousand, six hundred ninety-six".