65730221415 has 20 divisors (see below), whose sum is σ = 117827508744. Its totient is φ = 35056117872.

The previous prime is 65730221383. The next prime is 65730221419. The reversal of 65730221415 is 51412203756.

It is not a de Polignac number, because 65730221415 - 2⁵ = 65730221383 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 65730221415.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65730221419) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 81148017 + ... + 81148826.

Almost surely, 2^65730221415 is an apocalyptic number.

65730221415 is a deficient number, since it is larger than the sum of its proper divisors (52097287329).

65730221415 is a wasteful number, since it uses less digits than its factorization.

65730221415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162296860 (or 162296851 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 36.

The spelling of 65730221415 in words is "sixty-five billion, seven hundred thirty million, two hundred twenty-one thousand, four hundred fifteen".