810144220662 has 192 divisors, whose sum is σ = 2117080143360. Its totient is φ = 227403956736.

The previous prime is 810144220637. The next prime is 810144220663. The reversal of 810144220662 is 266022441018.

810144220662 is a `hidden beast` number, since 8 + 1 + 0 + 1 + 442 + 206 + 6 + 2 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (810144220663) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 88661758 + ... + 88670894.

It is an arithmetic number, because the mean of its divisors is an integer number (11026459080).

Almost surely, 2^810144220662 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 810144220662, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1058540071680).

810144220662 is an abundant number, since it is smaller than the sum of its proper divisors (1306935922698).

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

810144220662 is a wasteful number, since it uses less digits than its factorization.

810144220662 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9617 (or 9605 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 36.

The spelling of 810144220662 in words is "eight hundred ten billion, one hundred forty-four million, two hundred twenty thousand, six hundred sixty-two".