118660511 has 4 divisors (see below), whose sum is σ = 118692072. Its totient is φ = 118628952.

The previous prime is 118660463. The next prime is 118660513. The reversal of 118660511 is 115066811.

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 118660511 - 2¹⁰ = 118659487 is a prime.

It is a super-2 number, since 2×118660511² = 28160633741562242, 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 (118660513) 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, 9236 + ... + 17961.

It is an arithmetic number, because the mean of its divisors is an integer number (29673018).

Almost surely, 2^118660511 is an apocalyptic number.

118660511 is a deficient number, since it is larger than the sum of its proper divisors (31561).

118660511 is an equidigital number, since it uses as much as digits as its factorization.

118660511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31560.

The product of its (nonzero) digits is 1440, while the sum is 29.

The square root of 118660511 is about 10893.1405480697. The cubic root of 118660511 is about 491.4002858222.

The spelling of 118660511 in words is "one hundred eighteen million, six hundred sixty thousand, five hundred eleven".