40116511 has 4 divisors (see below), whose sum is σ = 41410624. Its totient is φ = 38822400.

The previous prime is 40116509. The next prime is 40116529. The reversal of 40116511 is 11561104.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 40116511 - 2¹ = 40116509 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40116551) by changing a digit.

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, 647010 + ... + 647071.

It is an arithmetic number, because the mean of its divisors is an integer number (10352656).

Almost surely, 2^40116511 is an apocalyptic number.

40116511 is a deficient number, since it is larger than the sum of its proper divisors (1294113).

40116511 is a wasteful number, since it uses less digits than its factorization.

40116511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1294112.

The product of its (nonzero) digits is 120, while the sum is 19.

The square root of 40116511 is about 6333.7596260041. The cubic root of 40116511 is about 342.3269191380.

Adding to 40116511 its reverse (11561104), we get a palindrome (51677615).

The spelling of 40116511 in words is "forty million, one hundred sixteen thousand, five hundred eleven".