1220524512166 has 16 divisors (see below), whose sum is σ = 1833871843440. Its totient is φ = 609234318720.

The previous prime is 1220524512157. The next prime is 1220524512191. The reversal of 1220524512166 is 6612154250221.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5835690 + ... + 6041218.

It is an arithmetic number, because the mean of its divisors is an integer number (114616990215).

Almost surely, 2^{1220524512166} is an apocalyptic number.

1220524512166 is a deficient number, since it is larger than the sum of its proper divisors (613347331274).

1220524512166 is a wasteful number, since it uses less digits than its factorization.

1220524512166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210519.

The product of its (nonzero) digits is 57600, while the sum is 37.

Adding to 1220524512166 its reverse (6612154250221), we get a palindrome (7832678762387).

The spelling of 1220524512166 in words is "one trillion, two hundred twenty billion, five hundred twenty-four million, five hundred twelve thousand, one hundred sixty-six".