11810660650 has 12 divisors (see below), whose sum is σ = 21967828902. Its totient is φ = 4724264240.

The previous prime is 11810660629. The next prime is 11810660713. The reversal of 11810660650 is 5606601811.

It can be written as a sum of positive squares in 3 ways, for example, as 6195106681 + 5615553969 = 78709^2 + 74937^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 118106557 + ... + 118106656.

Almost surely, 2^11810660650 is an apocalyptic number.

11810660650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11810660650 is a deficient number, since it is larger than the sum of its proper divisors (10157168252).

11810660650 is a wasteful number, since it uses less digits than its factorization.

11810660650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 236213225 (or 236213220 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 34.

The spelling of 11810660650 in words is "eleven billion, eight hundred ten million, six hundred sixty thousand, six hundred fifty".