1680366331 has 8 divisors (see below), whose sum is σ = 1920718080. Its totient is φ = 1440089448.

The previous prime is 1680366323. The next prime is 1680366353. The reversal of 1680366331 is 1336630861.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1680366331 - 2³ = 1680366323 is a prime.

It is a super-2 number, since 2×1680366331² = 5647262012716803122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1680366371) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42930 + ... + 72136.

It is an arithmetic number, because the mean of its divisors is an integer number (240089760).

Almost surely, 2^1680366331 is an apocalyptic number.

1680366331 is a deficient number, since it is larger than the sum of its proper divisors (240351749).

1680366331 is an equidigital number, since it uses as much as digits as its factorization.

1680366331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37433.

The product of its (nonzero) digits is 46656, while the sum is 37.

The square root of 1680366331 is about 40992.2716008762. The cubic root of 1680366331 is about 1188.8707907362.

The spelling of 1680366331 in words is "one billion, six hundred eighty million, three hundred sixty-six thousand, three hundred thirty-one".