1680677159 has 8 divisors (see below), whose sum is σ = 1972687008. Its totient is φ = 1401645600.

The previous prime is 1680677147. The next prime is 1680677177. The reversal of 1680677159 is 9517760861.

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

It is a cyclic number.

It is not a de Polignac number, because 1680677159 - 2⁸ = 1680676903 is a prime.

It is a super-2 number, since 2×1680677159² = 5649351425568622562, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1680677179) 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, 3244292 + ... + 3244809.

It is an arithmetic number, because the mean of its divisors is an integer number (246585876).

Almost surely, 2^1680677159 is an apocalyptic number.

1680677159 is a deficient number, since it is larger than the sum of its proper divisors (292009849).

1680677159 is an equidigital number, since it uses as much as digits as its factorization.

1680677159 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6489145.

The product of its (nonzero) digits is 635040, while the sum is 50.

The square root of 1680677159 is about 40996.0627255838. The cubic root of 1680677159 is about 1188.9440905361.

The spelling of 1680677159 in words is "one billion, six hundred eighty million, six hundred seventy-seven thousand, one hundred fifty-nine".