16771677679 has 4 divisors (see below), whose sum is σ = 16772441976. Its totient is φ = 16770913384.

The previous prime is 16771677647. The next prime is 16771677733. The reversal of 16771677679 is 97677617761.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 16771677679 - 2⁵ = 16771677647 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 16771677679.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16771677079) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 348229 + ... + 393454.

It is an arithmetic number, because the mean of its divisors is an integer number (4193110494).

Almost surely, 2^16771677679 is an apocalyptic number.

16771677679 is a deficient number, since it is larger than the sum of its proper divisors (764297).

16771677679 is an equidigital number, since it uses as much as digits as its factorization.

16771677679 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 764296.

The product of its digits is 32672808, while the sum is 64.

The spelling of 16771677679 in words is "sixteen billion, seven hundred seventy-one million, six hundred seventy-seven thousand, six hundred seventy-nine".