16632505 has 8 divisors (see below), whose sum is σ = 21009600. Its totient is φ = 12605616.

The previous prime is 16632487. The next prime is 16632509. The reversal of 16632505 is 50523661.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 16632505 - 2¹⁹ = 16108217 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16632509) 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, 87445 + ... + 87634.

It is an arithmetic number, because the mean of its divisors is an integer number (2626200).

Almost surely, 2^16632505 is an apocalyptic number.

It is an amenable number.

16632505 is a deficient number, since it is larger than the sum of its proper divisors (4377095).

16632505 is a wasteful number, since it uses less digits than its factorization.

16632505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175103.

The product of its (nonzero) digits is 5400, while the sum is 28.

The square root of 16632505 is about 4078.2968258821. The cubic root of 16632505 is about 255.2618353729.

The spelling of 16632505 in words is "sixteen million, six hundred thirty-two thousand, five hundred five".