1681660010 has 16 divisors (see below), whose sum is σ = 3028517856. Its totient is φ = 672324048.

The previous prime is 1681659983. The next prime is 1681660021. The reversal of 1681660010 is 100661861.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21212 + ... + 61751.

It is an arithmetic number, because the mean of its divisors is an integer number (189282366).

Almost surely, 2^1681660010 is an apocalyptic number.

1681660010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1681660010 is a deficient number, since it is larger than the sum of its proper divisors (1346857846).

1681660010 is a wasteful number, since it uses less digits than its factorization.

1681660010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84997.

The product of its (nonzero) digits is 1728, while the sum is 29.

The square root of 1681660010 is about 41008.0481125352. The cubic root of 1681660010 is about 1189.1758080847.

The spelling of 1681660010 in words is "one billion, six hundred eighty-one million, six hundred sixty thousand, ten".