11665670050 has 24 divisors (see below), whose sum is σ = 21706680996. Its totient is φ = 4664432640.

The previous prime is 11665670021. The next prime is 11665670077. The reversal of 11665670050 is 5007656611.

It can be written as a sum of positive squares in 6 ways, for example, as 6195736369 + 5469933681 = 78713^2 + 73959^2 .

It is a junction number, because it is equal to n+sod(n) for n = 11665669991 and 11665670009.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 86274 + ... + 175426.

Almost surely, 2^11665670050 is an apocalyptic number.

11665670050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11665670050 is a deficient number, since it is larger than the sum of its proper divisors (10041010946).

11665670050 is a wasteful number, since it uses less digits than its factorization.

11665670050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91782 (or 91777 counting only the distinct ones).

The product of its (nonzero) digits is 37800, while the sum is 37.

The spelling of 11665670050 in words is "eleven billion, six hundred sixty-five million, six hundred seventy thousand, fifty".