16000649 has 8 divisors (see below), whose sum is σ = 18332160. Its totient is φ = 13680576.

The previous prime is 16000627. The next prime is 16000667. The reversal of 16000649 is 94600061.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 16000649 - 2⁸ = 16000393 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16000609) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 392 + ... + 5670.

It is an arithmetic number, because the mean of its divisors is an integer number (2291520).

Almost surely, 2^16000649 is an apocalyptic number.

It is an amenable number.

16000649 is a deficient number, since it is larger than the sum of its proper divisors (2331511).

16000649 is an equidigital number, since it uses as much as digits as its factorization.

16000649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5719.

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 16000649 is about 4000.0811241774. The cubic root of 16000649 is about 251.9876169694.

The spelling of 16000649 in words is "sixteen million, six hundred forty-nine", and thus it is an aban number.