1681466810 has 16 divisors (see below), whose sum is σ = 3064953600. Its totient is φ = 664072656.

The previous prime is 1681466803. The next prime is 1681466851. The reversal of 1681466810 is 186641861.

It is a super-2 number, since 2×1681466810² = 5654661266263152200, which contains 22 as substring.

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, 1063430 + ... + 1065009.

It is an arithmetic number, because the mean of its divisors is an integer number (191559600).

Almost surely, 2^1681466810 is an apocalyptic number.

1681466810 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1681466810 is a deficient number, since it is larger than the sum of its proper divisors (1383486790).

1681466810 is a wasteful number, since it uses less digits than its factorization.

1681466810 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2128525.

The product of its (nonzero) digits is 55296, while the sum is 41.

The square root of 1681466810 is about 41005.6924097131. The cubic root of 1681466810 is about 1189.1302662662.

The spelling of 1681466810 in words is "one billion, six hundred eighty-one million, four hundred sixty-six thousand, eight hundred ten".