16788710561 has 8 divisors (see below), whose sum is σ = 19207758720. Its totient is φ = 14374827648.

The previous prime is 16788710531. The next prime is 16788710563. The reversal of 16788710561 is 16501788761.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16788710561 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16788710563) 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, 1284341 + ... + 1297346.

It is an arithmetic number, because the mean of its divisors is an integer number (2400969840).

Almost surely, 2^16788710561 is an apocalyptic number.

It is an amenable number.

16788710561 is a deficient number, since it is larger than the sum of its proper divisors (2419048159).

16788710561 is an equidigital number, since it uses as much as digits as its factorization.

16788710561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2582623.

The product of its (nonzero) digits is 564480, while the sum is 50.

The spelling of 16788710561 in words is "sixteen billion, seven hundred eighty-eight million, seven hundred ten thousand, five hundred sixty-one".