20151243260200 has 288 divisors, whose sum is σ = 54860117477760. Its totient is φ = 6853780377600.

The previous prime is 20151243260167. The next prime is 20151243260201. The reversal of 20151243260200 is 206234215102.

It is not an unprimeable number, because it can be changed into a prime (20151243260201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 26633115 + ... + 27379285.

It is an arithmetic number, because the mean of its divisors is an integer number (190486519020).

Almost surely, 2^{20151243260200} is an apocalyptic number.

20151243260200 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 20151243260200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27430058738880).

20151243260200 is an abundant number, since it is smaller than the sum of its proper divisors (34708874217560).

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

20151243260200 is a wasteful number, since it uses less digits than its factorization.

20151243260200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 746277 (or 746255 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 28.

Adding to 20151243260200 its reverse (206234215102), we get a palindrome (20357477475302).

The spelling of 20151243260200 in words is "twenty trillion, one hundred fifty-one billion, two hundred forty-three million, two hundred sixty thousand, two hundred".