20700011665116 has 192 divisors, whose sum is σ = 64617485900800. Its totient is φ = 5598146691072.

The previous prime is 20700011665033. The next prime is 20700011665159. The reversal of 20700011665116 is 61156611000702.

It is a happy number.

20700011665116 is a `hidden beast` number, since 2 + 0 + 70 + 0 + 0 + 11 + 66 + 511 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 15936756 + ... + 17186628.

Almost surely, 2^{20700011665116} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20700011665116, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32308742950400).

20700011665116 is an abundant number, since it is smaller than the sum of its proper divisors (43917474235684).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20700011665116 is a wasteful number, since it uses less digits than its factorization.

20700011665116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1251065 (or 1251057 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 36.

Adding to 20700011665116 its reverse (61156611000702), we get a palindrome (81856622665818).

The spelling of 20700011665116 in words is "twenty trillion, seven hundred billion, eleven million, six hundred sixty-five thousand, one hundred sixteen".