11465663 has 4 divisors (see below), whose sum is σ = 12508008. Its totient is φ = 10423320.

The previous prime is 11465653. The next prime is 11465689. The reversal of 11465663 is 36656411.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 11465663 - 2¹⁸ = 11203519 is a prime.

It is a super-2 number, since 2×11465663² = 262922856059138, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11465653) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 521156 + ... + 521177.

It is an arithmetic number, because the mean of its divisors is an integer number (3127002).

Almost surely, 2^11465663 is an apocalyptic number.

11465663 is a deficient number, since it is larger than the sum of its proper divisors (1042345).

11465663 is a wasteful number, since it uses less digits than its factorization.

11465663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1042344.

The product of its digits is 12960, while the sum is 32.

The square root of 11465663 is about 3386.0984923655. The cubic root of 11465663 is about 225.4929963754.

The spelling of 11465663 in words is "eleven million, four hundred sixty-five thousand, six hundred sixty-three".