671108911 has 16 divisors (see below), whose sum is σ = 751177728. Its totient is φ = 594338400.

The previous prime is 671108891. The next prime is 671108959. The reversal of 671108911 is 119801176.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-671108911 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (671106911) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 112381 + ... + 118201.

It is an arithmetic number, because the mean of its divisors is an integer number (46948608).

Almost surely, 2^671108911 is an apocalyptic number.

671108911 is a deficient number, since it is larger than the sum of its proper divisors (80068817).

671108911 is a wasteful number, since it uses less digits than its factorization.

671108911 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6102.

The product of its (nonzero) digits is 3024, while the sum is 34.

The square root of 671108911 is about 25905.7698399411. The cubic root of 671108911 is about 875.5164998467.

The spelling of 671108911 in words is "six hundred seventy-one million, one hundred eight thousand, nine hundred eleven".