11666730 has 16 divisors (see below), whose sum is σ = 28000224. Its totient is φ = 3111120.

The previous prime is 11666701. The next prime is 11666737. The reversal of 11666730 is 3766611.

It is a super-2 number, since 2×11666730² = 272225177785800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 388891 = 11666730 / (1 + 1 + 6 + 6 + 6 + 7 + 3 + 0).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (11666737) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 194416 + ... + 194475.

It is an arithmetic number, because the mean of its divisors is an integer number (1750014).

Almost surely, 2^11666730 is an apocalyptic number.

11666730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11666730 is an abundant number, since it is smaller than the sum of its proper divisors (16333494).

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

11666730 is a wasteful number, since it uses less digits than its factorization.

11666730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 388901.

The product of its (nonzero) digits is 4536, while the sum is 30.

The square root of 11666730 is about 3415.6595263580. The cubic root of 11666730 is about 226.8034809366.

The spelling of 11666730 in words is "eleven million, six hundred sixty-six thousand, seven hundred thirty".