11166620570650 has 24 divisors (see below), whose sum is σ = 20773331493120. Its totient is φ = 4465913339760.

The previous prime is 11166620570593. The next prime is 11166620570659. The reversal of 11166620570650 is 5607502666111.

It is a self number, because there is not a number n which added to its sum of digits gives 11166620570650.

It is not an unprimeable number, because it can be changed into a prime (11166620570659) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18065224 + ... + 18673123.

It is an arithmetic number, because the mean of its divisors is an integer number (865555478880).

Almost surely, 2^{11166620570650} is an apocalyptic number.

11166620570650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11166620570650 is a deficient number, since it is larger than the sum of its proper divisors (9606710922470).

11166620570650 is a wasteful number, since it uses less digits than its factorization.

11166620570650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36744438 (or 36744433 counting only the distinct ones).

The product of its (nonzero) digits is 453600, while the sum is 46.

The spelling of 11166620570650 in words is "eleven trillion, one hundred sixty-six billion, six hundred twenty million, five hundred seventy thousand, six hundred fifty".