665500501116 has 96 divisors (see below), whose sum is σ = 1981288108800. Its totient is φ = 191052768960.

The previous prime is 665500501109. The next prime is 665500501153. The reversal of 665500501116 is 611105005566.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14719155 + ... + 14764298.

It is an arithmetic number, because the mean of its divisors is an integer number (20638417800).

Almost surely, 2^665500501116 is an apocalyptic number.

665500501116 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

It is an amenable number.

665500501116 is an abundant number, since it is smaller than the sum of its proper divisors (1315787607684).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

665500501116 is a wasteful number, since it uses less digits than its factorization.

665500501116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29483496 (or 29483488 counting only the distinct ones).

The product of its (nonzero) digits is 27000, while the sum is 36.

The spelling of 665500501116 in words is "six hundred sixty-five billion, five hundred million, five hundred one thousand, one hundred sixteen".