16065221319351 has 20 divisors (see below), whose sum is σ = 24087219934624. Its totient is φ = 10670626692000.

The previous prime is 16065221319349. The next prime is 16065221319361. The reversal of 16065221319351 is 15391312256061.

16065221319351 is a `hidden beast` number, since 1 + 6 + 0 + 6 + 522 + 1 + 31 + 93 + 5 + 1 = 666.

It is not a de Polignac number, because 16065221319351 - 2¹ = 16065221319349 is a prime.

It is a super-2 number, since 2×16065221319351² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 16065221319297 and 16065221319306.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16065221319361) 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, 365911750 + ... + 365955651.

Almost surely, 2^{16065221319351} is an apocalyptic number.

16065221319351 is a deficient number, since it is larger than the sum of its proper divisors (8021998615273).

16065221319351 is an equidigital number, since it uses as much as digits as its factorization.

16065221319351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 731867684 (or 731867675 counting only the distinct ones).

The product of its (nonzero) digits is 291600, while the sum is 45.

The spelling of 16065221319351 in words is "sixteen trillion, sixty-five billion, two hundred twenty-one million, three hundred nineteen thousand, three hundred fifty-one".