11663001 has 32 divisors (see below), whose sum is σ = 20613120. Its totient is φ = 6372432.

The previous prime is 11662997. The next prime is 11663009. The reversal of 11663001 is 10036611.

11663001 is a `hidden beast` number, since 1 + 1 + 663 + 0 + 0 + 1 = 666.

It is not a de Polignac number, because 11663001 - 2² = 11662997 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (11663009) 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, 3006 + ... + 5688.

It is an arithmetic number, because the mean of its divisors is an integer number (644160).

Almost surely, 2^11663001 is an apocalyptic number.

It is an amenable number.

11663001 is a deficient number, since it is larger than the sum of its proper divisors (8950119).

11663001 is a wasteful number, since it uses less digits than its factorization.

11663001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2722 (or 2716 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

The square root of 11663001 is about 3415.1136145083. The cubic root of 11663001 is about 226.7793142019.

Adding to 11663001 its reverse (10036611), we get a palindrome (21699612).

The spelling of 11663001 in words is "eleven million, six hundred sixty-three thousand, one".