866122924248 has 80 divisors (see below), whose sum is σ = 2434226366880. Its totient is φ = 287722228032.

The previous prime is 866122924133. The next prime is 866122924279. The reversal of 866122924248 is 842429221668.

866122924248 is a `hidden beast` number, since 8 + 6 + 6 + 122 + 92 + 424 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 866122924194 and 866122924203.

It is a congruent number.

It is an unprimeable number.

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 19 ways as a sum of consecutive naturals, for example, 2091040 + ... + 2470767.

It is an arithmetic number, because the mean of its divisors is an integer number (30427829586).

Almost surely, 2^866122924248 is an apocalyptic number.

It is an amenable number.

866122924248 is an abundant number, since it is smaller than the sum of its proper divisors (1568103442632).

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

866122924248 is a wasteful number, since it uses less digits than its factorization.

866122924248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4562118 (or 4562105 counting only the distinct ones).

The product of its digits is 5308416, while the sum is 54.

The spelling of 866122924248 in words is "eight hundred sixty-six billion, one hundred twenty-two million, nine hundred twenty-four thousand, two hundred forty-eight".