11666451 has 8 divisors (see below), whose sum is σ = 16231680. Its totient is φ = 7439432.

The previous prime is 11666429. The next prime is 11666461. The reversal of 11666451 is 15466611.

11666451 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11666451 - 2⁵ = 11666419 is a prime.

It is a super-5 number, since 5×11666451⁵ (a number of 37 digits) contains 55555 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (11666461) 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, 84471 + ... + 84608.

It is an arithmetic number, because the mean of its divisors is an integer number (2028960).

Almost surely, 2^11666451 is an apocalyptic number.

11666451 is a deficient number, since it is larger than the sum of its proper divisors (4565229).

11666451 is a wasteful number, since it uses less digits than its factorization.

11666451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169105.

The product of its digits is 4320, while the sum is 30.

The square root of 11666451 is about 3415.6186848066. The cubic root of 11666451 is about 226.8016729842.

The spelling of 11666451 in words is "eleven million, six hundred sixty-six thousand, four hundred fifty-one".