16271328501 has 6 divisors (see below), whose sum is σ = 23503030070. Its totient is φ = 10847552328.

The previous prime is 16271328499. The next prime is 16271328529. The reversal of 16271328501 is 10582317261.

16271328501 is a `hidden beast` number, since 1 + 62 + 71 + 3 + 28 + 501 = 666.

It can be written as a sum of positive squares in only one way, i.e., 12667727601 + 3603600900 = 112551^2 + 60030^2 .

It is not a de Polignac number, because 16271328501 - 2¹ = 16271328499 is a prime.

It is a super-2 number, since 2×16271328501² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16271328571) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 903962686 + ... + 903962703.

Almost surely, 2^16271328501 is an apocalyptic number.

It is an amenable number.

16271328501 is a deficient number, since it is larger than the sum of its proper divisors (7231701569).

16271328501 is a wasteful number, since it uses less digits than its factorization.

16271328501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1807925395 (or 1807925392 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 36.

The spelling of 16271328501 in words is "sixteen billion, two hundred seventy-one million, three hundred twenty-eight thousand, five hundred one".