1650680684 has 24 divisors (see below), whose sum is σ = 2984370816. Its totient is φ = 798048000.

The previous prime is 1650680663. The next prime is 1650680687. The reversal of 1650680684 is 4860860561.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (1650680687) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 163874 + ... + 173654.

It is an arithmetic number, because the mean of its divisors is an integer number (124348784).

Almost surely, 2^1650680684 is an apocalyptic number.

It is an amenable number.

1650680684 is a deficient number, since it is larger than the sum of its proper divisors (1333690132).

1650680684 is a wasteful number, since it uses less digits than its factorization.

1650680684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11177 (or 11175 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 44.

The square root of 1650680684 is about 40628.5698000803. The cubic root of 1650680684 is about 1181.8282212531.

The spelling of 1650680684 in words is "one billion, six hundred fifty million, six hundred eighty thousand, six hundred eighty-four".