65115950 has 24 divisors (see below), whose sum is σ = 128241792. Its totient is φ = 24513920.

The previous prime is 65115943. The next prime is 65115961. The reversal of 65115950 is 5951156.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 37454 + ... + 39153.

It is an arithmetic number, because the mean of its divisors is an integer number (5343408).

Almost surely, 2^65115950 is an apocalyptic number.

65115950 is a deficient number, since it is larger than the sum of its proper divisors (63125842).

65115950 is a wasteful number, since it uses less digits than its factorization.

65115950 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76636 (or 76631 counting only the distinct ones).

The product of its (nonzero) digits is 6750, while the sum is 32.

The square root of 65115950 is about 8069.4454580225. The cubic root of 65115950 is about 402.3115123792.

The spelling of 65115950 in words is "sixty-five million, one hundred fifteen thousand, nine hundred fifty".