16761334905408 has 56 divisors (see below), whose sum is σ = 44348340462400. Its totient is φ = 5587030771200.

The previous prime is 16761334905391. The next prime is 16761334905421. The reversal of 16761334905408 is 80450943316761.

It is a super-2 number, since 2×16761334905408² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13488318 + ... + 14678466.

Almost surely, 2^{16761334905408} is an apocalyptic number.

It is an amenable number.

16761334905408 is an abundant number, since it is smaller than the sum of its proper divisors (27587005556992).

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

16761334905408 is a wasteful number, since it uses less digits than its factorization.

16761334905408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1263515 (or 1263505 counting only the distinct ones).

The product of its (nonzero) digits is 13063680, while the sum is 57.

The spelling of 16761334905408 in words is "sixteen trillion, seven hundred sixty-one billion, three hundred thirty-four million, nine hundred five thousand, four hundred eight".