11640066 has 16 divisors (see below), whose sum is σ = 24031488. Its totient is φ = 3754800.

The previous prime is 11640061. The next prime is 11640077. The reversal of 11640066 is 66004611.

It is a super-2 number, since 2×11640066² = 270982272968712, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11640061) 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, 31105 + ... + 31476.

It is an arithmetic number, because the mean of its divisors is an integer number (1501968).

Almost surely, 2^11640066 is an apocalyptic number.

11640066 is an abundant number, since it is smaller than the sum of its proper divisors (12391422).

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

11640066 is a wasteful number, since it uses less digits than its factorization.

11640066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62617.

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 11640066 is about 3411.7540943040. The cubic root of 11640066 is about 226.6305647039.

Adding to 11640066 its reverse (66004611), we get a palindrome (77644677).

The spelling of 11640066 in words is "eleven million, six hundred forty thousand, sixty-six".