16666011 has 6 divisors (see below), whose sum is σ = 24073140. Its totient is φ = 11110668.

The previous prime is 16665953. The next prime is 16666019. The reversal of 16666011 is 11066661.

It is not a de Polignac number, because 16666011 - 2¹¹ = 16663963 is a prime.

It is a zygodrome in base 8.

It is not an unprimeable number, because it can be changed into a prime (16666019) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 925881 + ... + 925898.

It is an arithmetic number, because the mean of its divisors is an integer number (4012190).

Almost surely, 2^16666011 is an apocalyptic number.

16666011 is a deficient number, since it is larger than the sum of its proper divisors (7407129).

16666011 is a wasteful number, since it uses less digits than its factorization.

16666011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1851785 (or 1851782 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 16666011 is about 4082.4026014101. The cubic root of 16666011 is about 255.4331277969.

The spelling of 16666011 in words is "sixteen million, six hundred sixty-six thousand, eleven".