16082121617 has 4 divisors (see below), whose sum is σ = 16781344320. Its totient is φ = 15382898916.

The previous prime is 16082121611. The next prime is 16082121631. The reversal of 16082121617 is 71612128061.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 71612128061 = 43 ⋅1665398327.

It is not a de Polignac number, because 16082121617 - 2¹⁴ = 16082105233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16082121611) 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 3 ways as a sum of consecutive naturals, for example, 349611317 + ... + 349611362.

It is an arithmetic number, because the mean of its divisors is an integer number (4195336080).

Almost surely, 2^16082121617 is an apocalyptic number.

It is an amenable number.

16082121617 is a deficient number, since it is larger than the sum of its proper divisors (699222703).

16082121617 is an equidigital number, since it uses as much as digits as its factorization.

16082121617 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 699222702.

The product of its (nonzero) digits is 8064, while the sum is 35.

Adding to 16082121617 its reverse (71612128061), we get a palindrome (87694249678).

The spelling of 16082121617 in words is "sixteen billion, eighty-two million, one hundred twenty-one thousand, six hundred seventeen".