100780543180800 has 3456 divisors, whose sum is σ = 447798964032000. Its totient is φ = 22473709977600.

The previous prime is 100780543180787. The next prime is 100780543180819. The reversal of 100780543180800 is 8081345087001.

It is a happy number.

100780543180800 is a `hidden beast` number, since 10 + 0 + 7 + 8 + 0 + 543 + 18 + 0 + 80 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (3456).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 2458062028780 + ... + 2458062028820.

It is an arithmetic number, because the mean of its divisors is an integer number (129571459500).

Almost surely, 2^{100780543180800} is an apocalyptic number.

100780543180800 is a gapful number since it is divisible by the number (10) 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 100780543180800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (223899482016000).

100780543180800 is an abundant number, since it is smaller than the sum of its proper divisors (347018420851200).

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

100780543180800 is an frugal number, since it uses more digits than its factorization.

100780543180800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127 (or 58 counting only the distinct ones).

The product of its (nonzero) digits is 215040, while the sum is 45.

The spelling of 100780543180800 in words is "one hundred trillion, seven hundred eighty billion, five hundred forty-three million, one hundred eighty thousand, eight hundred".