866652696 has 448 divisors, whose sum is σ = 3173022720. Its totient is φ = 215550720.

The previous prime is 866652671. The next prime is 866652713. The reversal of 866652696 is 696256668.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 111 ways as a sum of consecutive naturals, for example, 12206341 + ... + 12206411.

It is an arithmetic number, because the mean of its divisors is an integer number (7082640).

Almost surely, 2^866652696 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 866652696, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1586511360).

866652696 is an abundant number, since it is smaller than the sum of its proper divisors (2306370024).

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

866652696 is a wasteful number, since it uses less digits than its factorization.

866652696 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138 (or 119 counting only the distinct ones).

The product of its digits is 5598720, while the sum is 54.

The square root of 866652696 is about 29438.9656068280. The cubic root of 866652696 is about 953.4143789261.

The spelling of 866652696 in words is "eight hundred sixty-six million, six hundred fifty-two thousand, six hundred ninety-six".