2001559454208 has 960 divisors, whose sum is σ = 6839047987200. Its totient is φ = 558816952320.

The previous prime is 2001559454203. The next prime is 2001559454221. The reversal of 2001559454208 is 8024549551002.

2001559454208 is a `hidden beast` number, since 2 + 0 + 0 + 1 + 5 + 594 + 54 + 2 + 0 + 8 = 666.

It is not an unprimeable number, because it can be changed into a prime (2001559454203) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 2019736593 + ... + 2019737583.

It is an arithmetic number, because the mean of its divisors is an integer number (7124008320).

Almost surely, 2^{2001559454208} 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 2001559454208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3419523993600).

2001559454208 is an abundant number, since it is smaller than the sum of its proper divisors (4837488532992).

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

2001559454208 is a wasteful number, since it uses less digits than its factorization.

2001559454208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1133 (or 1114 counting only the distinct ones).

The product of its (nonzero) digits is 576000, while the sum is 45.

The spelling of 2001559454208 in words is "two trillion, one billion, five hundred fifty-nine million, four hundred fifty-four thousand, two hundred eight".