660754117 has 4 divisors (see below), whose sum is σ = 661068940. Its totient is φ = 660439296.

The previous prime is 660754111. The next prime is 660754169. The reversal of 660754117 is 711457066.

660754117 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in 2 ways, for example, as 33802596 + 626951521 = 5814^2 + 25039^2 .

It is a cyclic number.

It is not a de Polignac number, because 660754117 - 2²⁷ = 526536389 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 (660754111) 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, 154242 + ... + 158467.

It is an arithmetic number, because the mean of its divisors is an integer number (165267235).

It is a Poulet number, since it divides 2^660754116-1.

Almost surely, 2^660754117 is an apocalyptic number.

It is an amenable number.

660754117 is a deficient number, since it is larger than the sum of its proper divisors (314823).

660754117 is a wasteful number, since it uses less digits than its factorization.

660754117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 314822.

The product of its (nonzero) digits is 35280, while the sum is 37.

The square root of 660754117 is about 25705.1379494450. The cubic root of 660754117 is about 870.9902482428.

The spelling of 660754117 in words is "six hundred sixty million, seven hundred fifty-four thousand, one hundred seventeen".