118665723 has 16 divisors (see below), whose sum is σ = 173577600. Its totient is φ = 71513280.

The previous prime is 118665721. The next prime is 118665731. The reversal of 118665723 is 327566811.

It is not a de Polignac number, because 118665723 - 2¹ = 118665721 is a prime.

It is a super-2 number, since 2×118665723² = 28163107630225458, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (118665721) 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, 4138 + ... + 15951.

It is an arithmetic number, because the mean of its divisors is an integer number (10848600).

Almost surely, 2^118665723 is an apocalyptic number.

118665723 is a deficient number, since it is larger than the sum of its proper divisors (54911877).

118665723 is a wasteful number, since it uses less digits than its factorization.

118665723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20282.

The product of its digits is 60480, while the sum is 39.

The square root of 118665723 is about 10893.3797785628. The cubic root of 118665723 is about 491.4074804111.

The spelling of 118665723 in words is "one hundred eighteen million, six hundred sixty-five thousand, seven hundred twenty-three".