1680731163 has 48 divisors (see below), whose sum is σ = 2724321600. Its totient is φ = 993269760.

The previous prime is 1680731131. The next prime is 1680731189. The reversal of 1680731163 is 3611370861.

1680731163 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1680731163 - 2⁵ = 1680731131 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1680733163) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 177298 + ... + 186536.

It is an arithmetic number, because the mean of its divisors is an integer number (56756700).

Almost surely, 2^1680731163 is an apocalyptic number.

1680731163 is a deficient number, since it is larger than the sum of its proper divisors (1043590437).

1680731163 is a wasteful number, since it uses less digits than its factorization.

1680731163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9332 (or 9329 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 1680731163 is about 40996.7213689095. The cubic root of 1680731163 is about 1188.9568248971.

The spelling of 1680731163 in words is "one billion, six hundred eighty million, seven hundred thirty-one thousand, one hundred sixty-three".