866650752 has 384 divisors, whose sum is σ = 3007368000. Its totient is φ = 245514240.

The previous prime is 866650747. The next prime is 866650783. The reversal of 866650752 is 257056668.

It is a tau number, because it is divible by the number of its divisors (384).

It is a junction number, because it is equal to n+sod(n) for n = 866650698 and 866650707.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5816374 + ... + 5816522.

Almost surely, 2^866650752 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 866650752, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1503684000).

866650752 is an abundant number, since it is smaller than the sum of its proper divisors (2140717248).

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

866650752 is a wasteful number, since it uses less digits than its factorization.

866650752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 206 (or 182 counting only the distinct ones).

The product of its (nonzero) digits is 604800, while the sum is 45.

The square root of 866650752 is about 29438.9325893450. The cubic root of 866650752 is about 953.4136660535.

The spelling of 866650752 in words is "eight hundred sixty-six million, six hundred fifty thousand, seven hundred fifty-two".