816054225800 has 108 divisors (see below), whose sum is σ = 2085849840165. Its totient is φ = 296695889600.

The previous prime is 816054225797. The next prime is 816054225859. The reversal of 816054225800 is 8522450618.

It is a happy number.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 2 ways, for example, as 799733141284 + 16321084516 = 894278^2 + 127754^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=638770.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 140526497 + ... + 140532303.

Almost surely, 2^816054225800 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 816054225800

816054225800 is an abundant number, since it is smaller than the sum of its proper divisors (1269795614365).

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

816054225800 is an equidigital number, since it uses as much as digits as its factorization.

816054225800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11652 (or 5825 counting only the distinct ones).

The product of its (nonzero) digits is 153600, while the sum is 41.

The spelling of 816054225800 in words is "eight hundred sixteen billion, fifty-four million, two hundred twenty-five thousand, eight hundred".