16679880 has 96 divisors (see below), whose sum is σ = 61963200. Its totient is φ = 3811968.

The previous prime is 16679869. The next prime is 16679893. The reversal of 16679880 is 8897661.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (45).

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 23 ways as a sum of consecutive naturals, for example, 790 + ... + 5829.

It is an arithmetic number, because the mean of its divisors is an integer number (645450).

Almost surely, 2^16679880 is an apocalyptic number.

16679880 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 16679880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30981600).

16679880 is an abundant number, since it is smaller than the sum of its proper divisors (45283320).

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

16679880 is a wasteful number, since it uses less digits than its factorization.

16679880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6643 (or 6636 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 45.

The square root of 16679880 is about 4084.1008802428. The cubic root of 16679880 is about 255.5039629799.

The spelling of 16679880 in words is "sixteen million, six hundred seventy-nine thousand, eight hundred eighty".