16675520 has 84 divisors (see below), whose sum is σ = 42013632. Its totient is φ = 6297600.

The previous prime is 16675517. The next prime is 16675531. The reversal of 16675520 is 2557661.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 406700 + ... + 406740.

Almost surely, 2^16675520 is an apocalyptic number.

16675520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16675520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21006816).

16675520 is an abundant number, since it is smaller than the sum of its proper divisors (25338112).

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

16675520 is an equidigital number, since it uses as much as digits as its factorization.

16675520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130 (or 79 counting only the distinct ones).

The product of its (nonzero) digits is 12600, while the sum is 32.

The square root of 16675520 is about 4083.5670681403. The cubic root of 16675520 is about 255.4816987439.

The spelling of 16675520 in words is "sixteen million, six hundred seventy-five thousand, five hundred twenty".