1680126256 has 10 divisors (see below), whose sum is σ = 3255244652. Its totient is φ = 840063120.

The previous prime is 1680126197. The next prime is 1680126293. The reversal of 1680126256 is 6526210861.

It is a super-2 number, since 2×1680126256² = 5645648472201155072, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52503930 + ... + 52503961.

Almost surely, 2^1680126256 is an apocalyptic number.

1680126256 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1680126256 is a deficient number, since it is larger than the sum of its proper divisors (1575118396).

1680126256 is a wasteful number, since it uses less digits than its factorization.

1680126256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105007899 (or 105007893 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 37.

The square root of 1680126256 is about 40989.3432003978. The cubic root of 1680126256 is about 1188.8141697991.

The spelling of 1680126256 in words is "one billion, six hundred eighty million, one hundred twenty-six thousand, two hundred fifty-six".