1016660650 has 12 divisors (see below), whose sum is σ = 1890988902. Its totient is φ = 406664240.

The previous prime is 1016660599. The next prime is 1016660657. The reversal of 1016660650 is 560666101.

It can be written as a sum of positive squares in 3 ways, for example, as 986399649 + 30261001 = 31407^2 + 5501^2 .

It is not an unprimeable number, because it can be changed into a prime (1016660657) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 10166557 + ... + 10166656.

Almost surely, 2^1016660650 is an apocalyptic number.

1016660650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1016660650 is a deficient number, since it is larger than the sum of its proper divisors (874328252).

1016660650 is a wasteful number, since it uses less digits than its factorization.

1016660650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20333225 (or 20333220 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 31.

The square root of 1016660650 is about 31885.1164338473. The cubic root of 1016660650 is about 1005.5229904201.

The spelling of 1016660650 in words is "one billion, sixteen million, six hundred sixty thousand, six hundred fifty".