818069164780 has 192 divisors, whose sum is σ = 2013478871040. Its totient is φ = 273398501376.

The previous prime is 818069164777. The next prime is 818069164831. The reversal of 818069164780 is 87461960818.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1197758319 + ... + 1197759001.

It is an arithmetic number, because the mean of its divisors is an integer number (10486869120).

Almost surely, 2^818069164780 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 818069164780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1006739435520).

818069164780 is an abundant number, since it is smaller than the sum of its proper divisors (1195409706260).

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

818069164780 is a wasteful number, since it uses less digits than its factorization.

818069164780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1568 (or 1566 counting only the distinct ones).

The product of its (nonzero) digits is 4644864, while the sum is 58.

The spelling of 818069164780 in words is "eight hundred eighteen billion, sixty-nine million, one hundred sixty-four thousand, seven hundred eighty".