16064666 has 8 divisors (see below), whose sum is σ = 24928020. Its totient is φ = 7755328.

The previous prime is 16064639. The next prime is 16064683. The reversal of 16064666 is 66646061.

It can be written as a sum of positive squares in 2 ways, for example, as 14554225 + 1510441 = 3815^2 + 1229^2 .

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

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 138431 + ... + 138546.

Almost surely, 2^16064666 is an apocalyptic number.

16064666 is a deficient number, since it is larger than the sum of its proper divisors (8863354).

16064666 is a wasteful number, since it uses less digits than its factorization.

16064666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 277008.

The product of its (nonzero) digits is 31104, while the sum is 35.

The square root of 16064666 is about 4008.0750990968. The cubic root of 16064666 is about 252.3232288868.

The spelling of 16064666 in words is "sixteen million, sixty-four thousand, six hundred sixty-six".