65009660 has 24 divisors (see below), whose sum is σ = 137876256. Its totient is φ = 25745600.

The previous prime is 65009657. The next prime is 65009687. The reversal of 65009660 is 6690056.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14072 + ... + 18111.

It is an arithmetic number, because the mean of its divisors is an integer number (5744844).

Almost surely, 2^65009660 is an apocalyptic number.

It is an amenable number.

65009660 is an abundant number, since it is smaller than the sum of its proper divisors (72866596).

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

65009660 is a wasteful number, since it uses less digits than its factorization.

65009660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32293 (or 32291 counting only the distinct ones).

The product of its (nonzero) digits is 9720, while the sum is 32.

The square root of 65009660 is about 8062.8568138099. The cubic root of 65009660 is about 402.0924929291.

The spelling of 65009660 in words is "sixty-five million, nine thousand, six hundred sixty".