16656632 has 8 divisors (see below), whose sum is σ = 31231200. Its totient is φ = 8328312.

The previous prime is 16656631. The next prime is 16656649. The reversal of 16656632 is 23665661.

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 16656592 and 16656601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16656631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1041032 + ... + 1041047.

It is an arithmetic number, because the mean of its divisors is an integer number (3903900).

Almost surely, 2^16656632 is an apocalyptic number.

It is an amenable number.

16656632 is a deficient number, since it is larger than the sum of its proper divisors (14574568).

16656632 is a wasteful number, since it uses less digits than its factorization.

16656632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2082085 (or 2082081 counting only the distinct ones).

The product of its digits is 38880, while the sum is 35.

The square root of 16656632 is about 4081.2537289416. The cubic root of 16656632 is about 255.3852027745.

The spelling of 16656632 in words is "sixteen million, six hundred fifty-six thousand, six hundred thirty-two".