16632816 has 40 divisors (see below), whose sum is σ = 43129680. Its totient is φ = 5523456.

The previous prime is 16632797. The next prime is 16632823. The reversal of 16632816 is 61823661.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17440 + ... + 18368.

It is an arithmetic number, because the mean of its divisors is an integer number (1078242).

Almost surely, 2^16632816 is an apocalyptic number.

16632816 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

16632816 is an abundant number, since it is smaller than the sum of its proper divisors (26496864).

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

16632816 is a wasteful number, since it uses less digits than its factorization.

16632816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1313 (or 1307 counting only the distinct ones).

The product of its digits is 10368, while the sum is 33.

The square root of 16632816 is about 4078.3349543656. The cubic root of 16632816 is about 255.2634263526.

The spelling of 16632816 in words is "sixteen million, six hundred thirty-two thousand, eight hundred sixteen".