2001450245200 has 120 divisors (see below), whose sum is σ = 5503909191552. Its totient is φ = 685150287360.

The previous prime is 2001450245167. The next prime is 2001450245209. The reversal of 2001450245200 is 25420541002.

It is a super-2 number, since 2×2001450245200² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2001450245209) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1259202 + ... + 2363998.

Almost surely, 2^{2001450245200} is an apocalyptic number.

2001450245200 is a gapful number since it is divisible by the number (20) 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 2001450245200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2751954595776).

2001450245200 is an abundant number, since it is smaller than the sum of its proper divisors (3502458946352).

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

2001450245200 is a wasteful number, since it uses less digits than its factorization.

2001450245200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1105469 (or 1105458 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 25.

Adding to 2001450245200 its reverse (25420541002), we get a palindrome (2026870786202).

The spelling of 2001450245200 in words is "two trillion, one billion, four hundred fifty million, two hundred forty-five thousand, two hundred".