65119917321 has 12 divisors (see below), whose sum is σ = 94975328448. Its totient is φ = 42991789464.

The previous prime is 65119917301. The next prime is 65119917337. The reversal of 65119917321 is 12371991156.

65119917321 is a `hidden beast` number, since 6 + 511 + 99 + 17 + 32 + 1 = 666.

It is not a de Polignac number, because 65119917321 - 2⁶ = 65119917257 is a prime.

It is not an unprimeable number, because it can be changed into a prime (65119917301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 35123085 + ... + 35124938.

It is an arithmetic number, because the mean of its divisors is an integer number (7914610704).

Almost surely, 2^65119917321 is an apocalyptic number.

It is an amenable number.

65119917321 is a deficient number, since it is larger than the sum of its proper divisors (29855411127).

65119917321 is a wasteful number, since it uses less digits than its factorization.

65119917321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70248132 (or 70248129 counting only the distinct ones).

The product of its digits is 102060, while the sum is 45.

The spelling of 65119917321 in words is "sixty-five billion, one hundred nineteen million, nine hundred seventeen thousand, three hundred twenty-one".