16016656066 has 8 divisors (see below), whose sum is σ = 24025528764. Its totient is φ = 8008146480.

The previous prime is 16016656057. The next prime is 16016656067. The reversal of 16016656066 is 66065661061.

It can be written as a sum of positive squares in 2 ways, for example, as 15963059025 + 53597041 = 126345^2 + 7321^2 .

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

It is not an unprimeable number, because it can be changed into a prime (16016656067) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 98076 + ... + 204088.

Almost surely, 2^16016656066 is an apocalyptic number.

16016656066 is a deficient number, since it is larger than the sum of its proper divisors (8008872698).

16016656066 is a wasteful number, since it uses less digits than its factorization.

16016656066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181556.

The product of its (nonzero) digits is 233280, while the sum is 43.

The spelling of 16016656066 in words is "sixteen billion, sixteen million, six hundred fifty-six thousand, sixty-six".