660117369 has 8 divisors (see below), whose sum is σ = 881083872. Its totient is φ = 439614560.

The previous prime is 660117331. The next prime is 660117373. The reversal of 660117369 is 963711066.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 660117369 - 2¹² = 660113273 is a prime.

It is a super-2 number, since 2×660117369² = 871509881710964322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (660117329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 112587 + ... + 118304.

It is an arithmetic number, because the mean of its divisors is an integer number (110135484).

Almost surely, 2^660117369 is an apocalyptic number.

It is an amenable number.

660117369 is a deficient number, since it is larger than the sum of its proper divisors (220966503).

660117369 is a wasteful number, since it uses less digits than its factorization.

660117369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 231847.

The product of its (nonzero) digits is 40824, while the sum is 39.

The square root of 660117369 is about 25692.7493468488. The cubic root of 660117369 is about 870.7103763357.

The spelling of 660117369 in words is "six hundred sixty million, one hundred seventeen thousand, three hundred sixty-nine".