16671790771 has 4 divisors (see below), whose sum is σ = 16701403752. Its totient is φ = 16642177792.

The previous prime is 16671790753. The next prime is 16671790801. The reversal of 16671790771 is 17709717661.

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 16671790771 - 2⁹ = 16671790259 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16671790871) 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, 14805646 + ... + 14806771.

It is an arithmetic number, because the mean of its divisors is an integer number (4175350938).

Almost surely, 2^16671790771 is an apocalyptic number.

16671790771 is a deficient number, since it is larger than the sum of its proper divisors (29612981).

16671790771 is an equidigital number, since it uses as much as digits as its factorization.

16671790771 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29612980.

The product of its (nonzero) digits is 777924, while the sum is 52.

The spelling of 16671790771 in words is "sixteen billion, six hundred seventy-one million, seven hundred ninety thousand, seven hundred seventy-one".