116664511 has 4 divisors (see below), whose sum is σ = 116713000. Its totient is φ = 116616024.

The previous prime is 116664491. The next prime is 116664521. The reversal of 116664511 is 115466611.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 115466611 = 13 ⋅8882047.

It is a cyclic number.

It is not a de Polignac number, because 116664511 - 2¹⁵ = 116631743 is a prime.

It is a super-2 number, since 2×116664511² = 27221216253738242, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (116664521) 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, 20436 + ... + 25513.

It is an arithmetic number, because the mean of its divisors is an integer number (29178250).

Almost surely, 2^116664511 is an apocalyptic number.

116664511 is a deficient number, since it is larger than the sum of its proper divisors (48489).

116664511 is an equidigital number, since it uses as much as digits as its factorization.

116664511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48488.

The product of its digits is 4320, while the sum is 31.

The square root of 116664511 is about 10801.1347089091. The cubic root of 116664511 is about 488.6293934306.

The spelling of 116664511 in words is "one hundred sixteen million, six hundred sixty-four thousand, five hundred eleven".