16540011 has 16 divisors (see below), whose sum is σ = 24652320. Its totient is φ = 10959840.

The previous prime is 16540009. The next prime is 16540021. The reversal of 16540011 is 11004561.

16540011 is a `hidden beast` number, since 1 + 654 + 0 + 0 + 11 = 666.

It is not a de Polignac number, because 16540011 - 2¹ = 16540009 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16540021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2901 + ... + 6441.

It is an arithmetic number, because the mean of its divisors is an integer number (1540770).

Almost surely, 2^16540011 is an apocalyptic number.

16540011 is a deficient number, since it is larger than the sum of its proper divisors (8112309).

16540011 is a wasteful number, since it uses less digits than its factorization.

16540011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3723 (or 3717 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 18.

The square root of 16540011 is about 4066.9412339005. The cubic root of 16540011 is about 254.7877819127.

Adding to 16540011 its reverse (11004561), we get a palindrome (27544572).

The spelling of 16540011 in words is "sixteen million, five hundred forty thousand, eleven".