16312351512 has 32 divisors (see below), whose sum is σ = 41775536880. Its totient is φ = 5304829440.

The previous prime is 16312351499. The next prime is 16312351519. The reversal of 16312351512 is 21515321361.

16312351512 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×16312351512² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 16312351512.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16312351519) 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 7 ways as a sum of consecutive naturals, for example, 8287813 + ... + 8289780.

Almost surely, 2^16312351512 is an apocalyptic number.

16312351512 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

16312351512 is an abundant number, since it is smaller than the sum of its proper divisors (25463185368).

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

16312351512 is a wasteful number, since it uses less digits than its factorization.

16312351512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16577643 (or 16577639 counting only the distinct ones).

The product of its digits is 5400, while the sum is 30.

Adding to 16312351512 its reverse (21515321361), we get a palindrome (37827672873).

The spelling of 16312351512 in words is "sixteen billion, three hundred twelve million, three hundred fifty-one thousand, five hundred twelve".