2659553808 has 80 divisors (see below), whose sum is σ = 7143888000. Its totient is φ = 851558400.

The previous prime is 2659553807. The next prime is 2659553849. The reversal of 2659553808 is 8083559562.

It is a hoax number, since the sum of its digits (51) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (2659553807) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 272208 + ... + 281808.

It is an arithmetic number, because the mean of its divisors is an integer number (89298600).

Almost surely, 2^2659553808 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 2659553808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3571944000).

2659553808 is an abundant number, since it is smaller than the sum of its proper divisors (4484334192).

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

2659553808 is a wasteful number, since it uses less digits than its factorization.

2659553808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9840 (or 9834 counting only the distinct ones).

The product of its (nonzero) digits is 2592000, while the sum is 51.

The square root of 2659553808 is about 51570.8620055938. The cubic root of 2659553808 is about 1385.4885056660.

The spelling of 2659553808 in words is "two billion, six hundred fifty-nine million, five hundred fifty-three thousand, eight hundred eight".