65115051100650 has 72 divisors (see below), whose sum is σ = 174947154299424. Its totient is φ = 17363545437600.

The previous prime is 65115051100609. The next prime is 65115051100663. The reversal of 65115051100650 is 5600115051156.

It is a happy number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 14919085 + ... + 18783215.

It is an arithmetic number, because the mean of its divisors is an integer number (2429821587492).

Almost surely, 2^{65115051100650} is an apocalyptic number.

65115051100650 is an abundant number, since it is smaller than the sum of its proper divisors (109832103198774).

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

65115051100650 is a wasteful number, since it uses less digits than its factorization.

65115051100650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3901596 (or 3901588 counting only the distinct ones).

The product of its (nonzero) digits is 22500, while the sum is 36.

The spelling of 65115051100650 in words is "sixty-five trillion, one hundred fifteen billion, fifty-one million, one hundred thousand, six hundred fifty".