11666670 has 32 divisors (see below), whose sum is σ = 28189728. Its totient is φ = 3090048.

The previous prime is 11666663. The next prime is 11666689. The reversal of 11666670 is 7666611.

It is a super-2 number, since 2×11666670² = 272222377777800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3472 + ... + 5948.

It is an arithmetic number, because the mean of its divisors is an integer number (880929).

Almost surely, 2^11666670 is an apocalyptic number.

11666670 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11666670 is an abundant number, since it is smaller than the sum of its proper divisors (16523058).

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

11666670 is a wasteful number, since it uses less digits than its factorization.

11666670 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2644.

The product of its (nonzero) digits is 9072, while the sum is 33.

The square root of 11666670 is about 3415.6507432699. The cubic root of 11666670 is about 226.8030921321.

The spelling of 11666670 in words is "eleven million, six hundred sixty-six thousand, six hundred seventy".