65117015 has 8 divisors (see below), whose sum is σ = 78183888. Its totient is φ = 52064640.

The previous prime is 65116991. The next prime is 65117029. The reversal of 65117015 is 51071156.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 65117015 - 2⁸ = 65116759 is a prime.

It is a Duffinian number.

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, 14600 + ... + 18530.

It is an arithmetic number, because the mean of its divisors is an integer number (9772986).

Almost surely, 2^65117015 is an apocalyptic number.

65117015 is a deficient number, since it is larger than the sum of its proper divisors (13066873).

65117015 is a wasteful number, since it uses less digits than its factorization.

65117015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7249.

The product of its (nonzero) digits is 1050, while the sum is 26.

The square root of 65117015 is about 8069.5114474174. The cubic root of 65117015 is about 402.3137056945.

The spelling of 65117015 in words is "sixty-five million, one hundred seventeen thousand, fifteen".