866151084 has 24 divisors (see below), whose sum is σ = 2021598208. Its totient is φ = 288634320.

The previous prime is 866151047. The next prime is 866151103. The reversal of 866151084 is 480151668.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45249 + ... + 61479.

Almost surely, 2^866151084 is an apocalyptic number.

It is an amenable number.

866151084 is an abundant number, since it is smaller than the sum of its proper divisors (1155447124).

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

866151084 is a wasteful number, since it uses less digits than its factorization.

866151084 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20685 (or 20683 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 39.

The square root of 866151084 is about 29430.4448488296. Note that the first 3 decimals coincide. The cubic root of 866151084 is about 953.2304004253.

The spelling of 866151084 in words is "eight hundred sixty-six million, one hundred fifty-one thousand, eighty-four".