16320680 has 32 divisors (see below), whose sum is σ = 38883240. Its totient is φ = 6144000.

The previous prime is 16320653. The next prime is 16320719. The reversal of 16320680 is 8602361.

It can be written as a sum of positive squares in 4 ways, for example, as 13410244 + 2910436 = 3662^2 + 1706^2 .

It is a Smith number, since the sum of its digits (26) coincides with the sum of the digits of its prime factors.

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, 11321 + ... + 12680.

Almost surely, 2^16320680 is an apocalyptic number.

16320680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16320680 is an abundant number, since it is smaller than the sum of its proper divisors (22562560).

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

16320680 is a wasteful number, since it uses less digits than its factorization.

16320680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24029 (or 24025 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 16320680 is about 4039.8861370093. The cubic root of 16320680 is about 253.6565511252.

The spelling of 16320680 in words is "sixteen million, three hundred twenty thousand, six hundred eighty".