65215356531430 has 256 divisors, whose sum is σ = 138528795525120. Its totient is φ = 21645973440000.

The previous prime is 65215356531419. The next prime is 65215356531433. The reversal of 65215356531430 is 3413565351256.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65215356531433) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 103352387215 + ... + 103352387845.

It is an arithmetic number, because the mean of its divisors is an integer number (541128107520).

Almost surely, 2^{65215356531430} is an apocalyptic number.

65215356531430 is an abundant number, since it is smaller than the sum of its proper divisors (73313438993690).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

65215356531430 is a wasteful number, since it uses less digits than its factorization.

65215356531430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1827.

The product of its (nonzero) digits is 4860000, while the sum is 49.

The spelling of 65215356531430 in words is "sixty-five trillion, two hundred fifteen billion, three hundred fifty-six million, five hundred thirty-one thousand, four hundred thirty".