911499966 has 80 divisors (see below), whose sum is σ = 2206767024. Its totient is φ = 279542016.

The previous prime is 911499949. The next prime is 911499971. The reversal of 911499966 is 669994119.

911499966 is a `hidden beast` number, since 91 + 1 + 499 + 9 + 66 = 666.

It is a super-3 number, since 3×911499966³ (a number of 28 digits) contains 333 as substring.

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 polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 932470 + ... + 933446.

Almost surely, 2^911499966 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 911499966, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1103383512).

911499966 is an abundant number, since it is smaller than the sum of its proper divisors (1295267058).

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

911499966 is a wasteful number, since it uses less digits than its factorization.

911499966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1447 (or 1438 counting only the distinct ones).

The product of its digits is 944784, while the sum is 54.

The square root of 911499966 is about 30191.0577158204. The cubic root of 911499966 is about 969.5842502159.

The spelling of 911499966 in words is "nine hundred eleven million, four hundred ninety-nine thousand, nine hundred sixty-six".