866116062 has 144 divisors (see below), whose sum is σ = 2292322032. Its totient is φ = 235388160.

The previous prime is 866116033. The next prime is 866116079. The reversal of 866116062 is 260611668.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 1554688 + ... + 1555244.

It is an arithmetic number, because the mean of its divisors is an integer number (15918903).

Almost surely, 2^866116062 is an apocalyptic number.

866116062 is a gapful number since it is divisible by the number (82) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 866116062, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1146161016).

866116062 is an abundant number, since it is smaller than the sum of its proper divisors (1426205970).

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

866116062 is a wasteful number, since it uses less digits than its factorization.

866116062 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 663 (or 653 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 866116062 is about 29429.8498467118. The cubic root of 866116062 is about 953.2175525955.

The spelling of 866116062 in words is "eight hundred sixty-six million, one hundred sixteen thousand, sixty-two".