605020811780 has 192 divisors, whose sum is σ = 1721216286720. Its totient is φ = 172889510400.

The previous prime is 605020811779. The next prime is 605020811783. The reversal of 605020811780 is 87118020506.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is not an unprimeable number, because it can be changed into a prime (605020811783) by changing a digit.

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 63 ways as a sum of consecutive naturals, for example, 573554 + ... + 1240566.

It is an arithmetic number, because the mean of its divisors is an integer number (8964668160).

Almost surely, 2^605020811780 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 605020811780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (860608143360).

605020811780 is an abundant number, since it is smaller than the sum of its proper divisors (1116195474940).

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

605020811780 is a wasteful number, since it uses less digits than its factorization.

605020811780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 667090 (or 667088 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 38.

The spelling of 605020811780 in words is "six hundred five billion, twenty million, eight hundred eleven thousand, seven hundred eighty".