20700001611166 has 16 divisors (see below), whose sum is σ = 32877348231456. Its totient is φ = 9740917944576.

The previous prime is 20700001611161. The next prime is 20700001611199. The reversal of 20700001611166 is 66111610000702.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20700001611161) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6803466 + ... + 9364141.

It is an arithmetic number, because the mean of its divisors is an integer number (2054834264466).

Almost surely, 2^{20700001611166} is an apocalyptic number.

20700001611166 is a deficient number, since it is larger than the sum of its proper divisors (12177346620290).

20700001611166 is a wasteful number, since it uses less digits than its factorization.

20700001611166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16205283.

The product of its (nonzero) digits is 3024, while the sum is 31.

Adding to 20700001611166 its reverse (66111610000702), we get a palindrome (86811611611868).

The spelling of 20700001611166 in words is "twenty trillion, seven hundred billion, one million, six hundred eleven thousand, one hundred sixty-six".