16378783512 has 96 divisors (see below), whose sum is σ = 51296238000. Its totient is φ = 4319675136.

The previous prime is 16378783507. The next prime is 16378783517. The reversal of 16378783512 is 21538787361.

It is an interprime number because it is at equal distance from previous prime (16378783507) and next prime (16378783517).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16378783517) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 520387 + ... + 550962.

Almost surely, 2^16378783512 is an apocalyptic number.

16378783512 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

16378783512 is an abundant number, since it is smaller than the sum of its proper divisors (34917454488).

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

16378783512 is a wasteful number, since it uses less digits than its factorization.

16378783512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1071385 (or 1071374 counting only the distinct ones).

The product of its digits is 1693440, while the sum is 51.

The spelling of 16378783512 in words is "sixteen billion, three hundred seventy-eight million, seven hundred eighty-three thousand, five hundred twelve".