16082121616 has 40 divisors (see below), whose sum is σ = 34272726048. Its totient is φ = 7310045600.

The previous prime is 16082121611. The next prime is 16082121631. The reversal of 16082121616 is 61612128061.

It is not an unprimeable number, because it can be changed into a prime (16082121611) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 356290 + ... + 398881.

Almost surely, 2^16082121616 is an apocalyptic number.

16082121616 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

16082121616 is an abundant number, since it is smaller than the sum of its proper divisors (18190604432).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16082121616 is an equidigital number, since it uses as much as digits as its factorization.

16082121616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 755212 (or 755184 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 34.

Adding to 16082121616 its reverse (61612128061), we get a palindrome (77694249677).

The spelling of 16082121616 in words is "sixteen billion, eighty-two million, one hundred twenty-one thousand, six hundred sixteen".