866385130 has 16 divisors (see below), whose sum is σ = 1679454504. Its totient is φ = 319896000.

The previous prime is 866385077. The next prime is 866385133. The reversal of 866385130 is 31583668.

It can be written as a sum of positive squares in 4 ways, for example, as 415629769 + 450755361 = 20387^2 + 21231^2 .

It is not an unprimeable number, because it can be changed into a prime (866385133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3332121 + ... + 3332380.

Almost surely, 2^866385130 is an apocalyptic number.

866385130 is a deficient number, since it is larger than the sum of its proper divisors (813069374).

866385130 is a wasteful number, since it uses less digits than its factorization.

866385130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6664521.

The product of its (nonzero) digits is 103680, while the sum is 40.

The square root of 866385130 is about 29434.4208368366. The cubic root of 866385130 is about 953.3162513715.

The spelling of 866385130 in words is "eight hundred sixty-six million, three hundred eighty-five thousand, one hundred thirty".