1680565710 has 16 divisors (see below), whose sum is σ = 4033357776. Its totient is φ = 448150848.

The previous prime is 1680565709. The next prime is 1680565759. The reversal of 1680565710 is 175650861.

It is a super-2 number, since 2×1680565710² = 5648602211255608200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28009399 + ... + 28009458.

It is an arithmetic number, because the mean of its divisors is an integer number (252084861).

Almost surely, 2^1680565710 is an apocalyptic number.

1680565710 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1680565710 is an abundant number, since it is smaller than the sum of its proper divisors (2352792066).

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

1680565710 is a wasteful number, since it uses less digits than its factorization.

1680565710 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56018867.

The product of its (nonzero) digits is 50400, while the sum is 39.

The square root of 1680565710 is about 40994.7034383712. The cubic root of 1680565710 is about 1188.9178095500.

The spelling of 1680565710 in words is "one billion, six hundred eighty million, five hundred sixty-five thousand, seven hundred ten".