65109950 has 12 divisors (see below), whose sum is σ = 121104600. Its totient is φ = 26043960.

The previous prime is 65109929. The next prime is 65110021. The reversal of 65109950 is 5990156.

It is a self number, because there is not a number n which added to its sum of digits gives 65109950.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 651050 + ... + 651149.

It is an arithmetic number, because the mean of its divisors is an integer number (10092050).

Almost surely, 2^65109950 is an apocalyptic number.

65109950 is a deficient number, since it is larger than the sum of its proper divisors (55994650).

65109950 is a wasteful number, since it uses less digits than its factorization.

65109950 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1302211 (or 1302206 counting only the distinct ones).

The product of its (nonzero) digits is 12150, while the sum is 35.

The square root of 65109950 is about 8069.0736766992. The cubic root of 65109950 is about 402.2991552264.

The spelling of 65109950 in words is "sixty-five million, one hundred nine thousand, nine hundred fifty".