16775457761 has 8 divisors (see below), whose sum is σ = 17770337280. Its totient is φ = 15781476928.

The previous prime is 16775457757. The next prime is 16775457773.

16775457761 is nontrivially palindromic in base 10.

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

It is a cyclic number.

It is not a de Polignac number, because 16775457761 - 2² = 16775457757 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 16775457697 and 16775457706.

It is not an unprimeable number, because it can be changed into a prime (16775457661) 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, 186041 + ... + 261078.

It is an arithmetic number, because the mean of its divisors is an integer number (2221292160).

Almost surely, 2^16775457761 is an apocalyptic number.

It is an amenable number.

16775457761 is a deficient number, since it is larger than the sum of its proper divisors (994879519).

16775457761 is a wasteful number, since it uses less digits than its factorization.

16775457761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 449343.

The product of its digits is 8643600, while the sum is 56.

The spelling of 16775457761 in words is "sixteen billion, seven hundred seventy-five million, four hundred fifty-seven thousand, seven hundred sixty-one".