65215370730117 has 16 divisors (see below), whose sum is σ = 87337453003200. Its totient is φ = 43285103634432.

The previous prime is 65215370730073. The next prime is 65215370730121. The reversal of 65215370730117 is 71103707351256.

It is not a de Polignac number, because 65215370730117 - 2²⁶ = 65215303621253 is a prime.

It is a super-2 number, since 2×65215370730117² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65215370732117) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 185839173 + ... + 186189765.

It is an arithmetic number, because the mean of its divisors is an integer number (5458590812700).

Almost surely, 2^{65215370730117} is an apocalyptic number.

It is an amenable number.

65215370730117 is a deficient number, since it is larger than the sum of its proper divisors (22122082273083).

65215370730117 is a wasteful number, since it uses less digits than its factorization.

65215370730117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 623972.

The product of its (nonzero) digits is 926100, while the sum is 48.

The spelling of 65215370730117 in words is "sixty-five trillion, two hundred fifteen billion, three hundred seventy million, seven hundred thirty thousand, one hundred seventeen".