11601648 has 30 divisors (see below), whose sum is σ = 32468904. Its totient is φ = 3867168.

The previous prime is 11601643. The next prime is 11601659. The reversal of 11601648 is 84610611.

11601648 is a `hidden beast` number, since 1 + 16 + 0 + 1 + 648 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11601641) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 40140 + ... + 40427.

Almost surely, 2^11601648 is an apocalyptic number.

11601648 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

11601648 is an abundant number, since it is smaller than the sum of its proper divisors (20867256).

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

11601648 is a wasteful number, since it uses less digits than its factorization.

11601648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80581 (or 80572 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 27.

The square root of 11601648 is about 3406.1191993235. The cubic root of 11601648 is about 226.3809587469.

The spelling of 11601648 in words is "eleven million, six hundred one thousand, six hundred forty-eight".