671116768 has 96 divisors (see below), whose sum is σ = 1573060608. Its totient is φ = 275788800.

The previous prime is 671116763. The next prime is 671116783. The reversal of 671116768 is 867611176.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (671116763) 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, 881508 + ... + 882268.

It is an arithmetic number, because the mean of its divisors is an integer number (16386048).

Almost surely, 2^671116768 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 671116768, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (786530304).

671116768 is an abundant number, since it is smaller than the sum of its proper divisors (901943840).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

671116768 is a wasteful number, since it uses less digits than its factorization.

671116768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 936 (or 928 counting only the distinct ones).

The product of its digits is 84672, while the sum is 43.

The square root of 671116768 is about 25905.9214852512. The cubic root of 671116768 is about 875.5199165332.

The spelling of 671116768 in words is "six hundred seventy-one million, one hundred sixteen thousand, seven hundred sixty-eight".