916660505 has 16 divisors (see below), whose sum is σ = 1125792000. Its totient is φ = 716195712.

The previous prime is 916660471. The next prime is 916660517. The reversal of 916660505 is 505066619.

It is a cyclic number.

It is not a de Polignac number, because 916660505 - 2⁸ = 916660249 is a prime.

It is a super-3 number, since 3×916660505³ (a number of 28 digits) contains 333 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 113357 + ... + 121173.

It is an arithmetic number, because the mean of its divisors is an integer number (70362000).

Almost surely, 2^916660505 is an apocalyptic number.

It is an amenable number.

916660505 is a deficient number, since it is larger than the sum of its proper divisors (209131495).

916660505 is a wasteful number, since it uses less digits than its factorization.

916660505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8368.

The product of its (nonzero) digits is 48600, while the sum is 38.

The square root of 916660505 is about 30276.4017842279. The cubic root of 916660505 is about 971.4106039837.

The spelling of 916660505 in words is "nine hundred sixteen million, six hundred sixty thousand, five hundred five".