1676643680 has 48 divisors (see below), whose sum is σ = 4088859264. Its totient is φ = 649021440.

The previous prime is 1676643679. The next prime is 1676643691. The reversal of 1676643680 is 863466761.

It is a super-2 number, since 2×1676643680² = 5622268059367884800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 164057 + ... + 173976.

It is an arithmetic number, because the mean of its divisors is an integer number (85184568).

Almost surely, 2^1676643680 is an apocalyptic number.

1676643680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1676643680 is an abundant number, since it is smaller than the sum of its proper divisors (2412215584).

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

1676643680 is a wasteful number, since it uses less digits than its factorization.

1676643680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 338079 (or 338071 counting only the distinct ones).

The product of its (nonzero) digits is 870912, while the sum is 47.

The square root of 1676643680 is about 40946.8396826910. The cubic root of 1676643680 is about 1187.9922078491.

The spelling of 1676643680 in words is "one billion, six hundred seventy-six million, six hundred forty-three thousand, six hundred eighty".