816181282260 has 96 divisors (see below), whose sum is σ = 2621141376000. Its totient is φ = 210627423360.

The previous prime is 816181282249. The next prime is 816181282289. The reversal of 816181282260 is 62282181618.

816181282260 is a `hidden beast` number, since 8 + 1 + 618 + 1 + 2 + 8 + 2 + 26 + 0 = 666.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 24361435 + ... + 24394914.

It is an arithmetic number, because the mean of its divisors is an integer number (27303556000).

Almost surely, 2^816181282260 is an apocalyptic number.

It is an amenable number.

816181282260 is an abundant number, since it is smaller than the sum of its proper divisors (1804960093740).

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

816181282260 is a wasteful number, since it uses less digits than its factorization.

816181282260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48756398 (or 48756390 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 45.

The spelling of 816181282260 in words is "eight hundred sixteen billion, one hundred eighty-one million, two hundred eighty-two thousand, two hundred sixty".