16149680 has 80 divisors (see below), whose sum is σ = 40068864. Its totient is φ = 6040320.

The previous prime is 16149631. The next prime is 16149691. The reversal of 16149680 is 8694161.

It is a tau number, because it is divible by the number of its divisors (80).

It is a self number, because there is not a number n which added to its sum of digits gives 16149680.

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 15 ways as a sum of consecutive naturals, for example, 123215 + ... + 123345.

Almost surely, 2^16149680 is an apocalyptic number.

16149680 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 16149680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20034432).

16149680 is an abundant number, since it is smaller than the sum of its proper divisors (23919184).

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

16149680 is a wasteful number, since it uses less digits than its factorization.

16149680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 234 (or 228 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 35.

The square root of 16149680 is about 4018.6664454767. Note that the first 3 decimals coincide. The cubic root of 16149680 is about 252.7675431011.

The spelling of 16149680 in words is "sixteen million, one hundred forty-nine thousand, six hundred eighty".