11668690 has 64 divisors (see below), whose sum is σ = 24427008. Its totient is φ = 3974400.

The previous prime is 11668687. The next prime is 11668691. The reversal of 11668690 is 9686611.

It is a super-2 number, since 2×11668690² = 272316652632200, which contains 22 as substring.

It is a Smith number, since the sum of its digits (37) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is not an unprimeable number, because it can be changed into a prime (11668691) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 191260 + ... + 191320.

It is an arithmetic number, because the mean of its divisors is an integer number (381672).

Almost surely, 2^11668690 is an apocalyptic number.

11668690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11668690 is an abundant number, since it is smaller than the sum of its proper divisors (12758318).

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

11668690 is a wasteful number, since it uses less digits than its factorization.

11668690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163.

The product of its (nonzero) digits is 15552, while the sum is 37.

The square root of 11668690 is about 3415.9464281514. The cubic root of 11668690 is about 226.8161811514.

The spelling of 11668690 in words is "eleven million, six hundred sixty-eight thousand, six hundred ninety".