16780138744 has 32 divisors (see below), whose sum is σ = 32013193680. Its totient is φ = 8243921664.

The previous prime is 16780138741. The next prime is 16780138751. The reversal of 16780138744 is 44783108761.

16780138744 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16780138741) 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, 173364 + ... + 252220.

Almost surely, 2^16780138744 is an apocalyptic number.

It is an amenable number.

16780138744 is a deficient number, since it is larger than the sum of its proper divisors (15233054936).

16780138744 is a wasteful number, since it uses less digits than its factorization.

16780138744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79327 (or 79323 counting only the distinct ones).

The product of its (nonzero) digits is 903168, while the sum is 49.

The spelling of 16780138744 in words is "sixteen billion, seven hundred eighty million, one hundred thirty-eight thousand, seven hundred forty-four".