16077666 has 64 divisors (see below), whose sum is σ = 36827136. Its totient is φ = 4636800.

The previous prime is 16077661. The next prime is 16077671. The reversal of 16077666 is 66677061.

It is an interprime number because it is at equal distance from previous prime (16077661) and next prime (16077671).

It is not an unprimeable number, because it can be changed into a prime (16077661) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 220206 + ... + 220278.

It is an arithmetic number, because the mean of its divisors is an integer number (575424).

Almost surely, 2^16077666 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16077666, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18413568).

16077666 is an abundant number, since it is smaller than the sum of its proper divisors (20749470).

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

16077666 is a wasteful number, since it uses less digits than its factorization.

16077666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 207.

The product of its (nonzero) digits is 63504, while the sum is 39.

The square root of 16077666 is about 4009.6964972427. The cubic root of 16077666 is about 252.3912729939.

The spelling of 16077666 in words is "sixteen million, seventy-seven thousand, six hundred sixty-six".