65165650 has 48 divisors (see below), whose sum is σ = 133562880. Its totient is φ = 23457600.

The previous prime is 65165623. The next prime is 65165651. The reversal of 65165650 is 5656156.

65165650 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (65165651) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 59407 + ... + 60493.

It is an arithmetic number, because the mean of its divisors is an integer number (2782560).

Almost surely, 2^65165650 is an apocalyptic number.

65165650 is an abundant number, since it is smaller than the sum of its proper divisors (68397230).

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

65165650 is a wasteful number, since it uses less digits than its factorization.

65165650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1219 (or 1214 counting only the distinct ones).

The product of its (nonzero) digits is 27000, while the sum is 34.

The square root of 65165650 is about 8072.5243883187. The cubic root of 65165650 is about 402.4138416204.

The spelling of 65165650 in words is "sixty-five million, one hundred sixty-five thousand, six hundred fifty".