11866662 has 32 divisors (see below), whose sum is σ = 26705760. Its totient is φ = 3954096.

The previous prime is 11866649. The next prime is 11866691. The reversal of 11866662 is 26666811.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3018 + ... + 5730.

It is an arithmetic number, because the mean of its divisors is an integer number (834555).

Almost surely, 2^11866662 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11866662, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13352880).

11866662 is an abundant number, since it is smaller than the sum of its proper divisors (14839098).

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

11866662 is an frugal number, since it uses more digits than its factorization.

11866662 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2736 (or 2718 counting only the distinct ones).

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

The square root of 11866662 is about 3444.8021713881. The cubic root of 11866662 is about 228.0917220989.

The spelling of 11866662 in words is "eleven million, eight hundred sixty-six thousand, six hundred sixty-two".