65215836874859 has 8 divisors (see below), whose sum is σ = 73067374975728. Its totient is φ = 57684769716960.

The previous prime is 65215836874849. The next prime is 65215836874861. The reversal of 65215836874859 is 95847863851256.

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

It is a cyclic number.

It is not a de Polignac number, because 65215836874859 - 2²⁴ = 65215820097643 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 65215836874859.

It is not an unprimeable number, because it can be changed into a prime (65215836874849) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 80117735312 + ... + 80117736125.

It is an arithmetic number, because the mean of its divisors is an integer number (9133421871966).

Almost surely, 2^{65215836874859} is an apocalyptic number.

65215836874859 is a deficient number, since it is larger than the sum of its proper divisors (7851538100869).

65215836874859 is a wasteful number, since it uses less digits than its factorization.

65215836874859 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160235471485.

The product of its digits is 3483648000, while the sum is 77.

The spelling of 65215836874859 in words is "sixty-five trillion, two hundred fifteen billion, eight hundred thirty-six million, eight hundred seventy-four thousand, eight hundred fifty-nine".