16771456709 has 8 divisors (see below), whose sum is σ = 20294872128. Its totient is φ = 13529914560.

The previous prime is 16771456703. The next prime is 16771456729. The reversal of 16771456709 is 90765417761.

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 16771456709 - 2¹² = 16771452613 is a prime.

It is a super-2 number, since 2×16771456709² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16771456703) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70468187 + ... + 70468424.

It is an arithmetic number, because the mean of its divisors is an integer number (2536859016).

Almost surely, 2^16771456709 is an apocalyptic number.

It is an amenable number.

16771456709 is a deficient number, since it is larger than the sum of its proper divisors (3523415419).

16771456709 is a wasteful number, since it uses less digits than its factorization.

16771456709 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140936635.

The product of its (nonzero) digits is 2222640, while the sum is 53.

The spelling of 16771456709 in words is "sixteen billion, seven hundred seventy-one million, four hundred fifty-six thousand, seven hundred nine".