866086264 has 16 divisors (see below), whose sum is σ = 1627584120. Its totient is φ = 432063840.

The previous prime is 866086259. The next prime is 866086283. The reversal of 866086264 is 462680668.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 118647 + ... + 125734.

Almost surely, 2^866086264 is an apocalyptic number.

It is an amenable number.

866086264 is a deficient number, since it is larger than the sum of its proper divisors (761497856).

866086264 is a wasteful number, since it uses less digits than its factorization.

866086264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 244830 (or 244826 counting only the distinct ones).

The product of its (nonzero) digits is 663552, while the sum is 46.

The square root of 866086264 is about 29429.3435876507. The cubic root of 866086264 is about 953.2066209188.

The spelling of 866086264 in words is "eight hundred sixty-six million, eighty-six thousand, two hundred sixty-four".