1166116610650 has 12 divisors (see below), whose sum is σ = 2168976895902. Its totient is φ = 466446644240.

The previous prime is 1166116610647. The next prime is 1166116610651. The reversal of 1166116610650 is 560166116611.

It can be written as a sum of positive squares in 3 ways, for example, as 708238381761 + 457878228889 = 841569^2 + 676667^2 .

It is not an unprimeable number, because it can be changed into a prime (1166116610651) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11661166057 + ... + 11661166156.

Almost surely, 2^{1166116610650} is an apocalyptic number.

1166116610650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1166116610650 is a deficient number, since it is larger than the sum of its proper divisors (1002860285252).

1166116610650 is a wasteful number, since it uses less digits than its factorization.

1166116610650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23322332225 (or 23322332220 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 40.

The spelling of 1166116610650 in words is "one trillion, one hundred sixty-six billion, one hundred sixteen million, six hundred ten thousand, six hundred fifty".