20651116030160 has 160 divisors (see below), whose sum is σ = 59869305833472. Its totient is φ = 6435863216640.

The previous prime is 20651116030121. The next prime is 20651116030169. The reversal of 20651116030160 is 6103061115602.

It is a super-2 number, since 2×20651116030160² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20651116030169) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 47356637 + ... + 47790723.

Almost surely, 2^{20651116030160} is an apocalyptic number.

20651116030160 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20651116030160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29934652916736).

20651116030160 is an abundant number, since it is smaller than the sum of its proper divisors (39218189803312).

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

20651116030160 is a wasteful number, since it uses less digits than its factorization.

20651116030160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 441841 (or 441835 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 32.

Adding to 20651116030160 its reverse (6103061115602), we get a palindrome (26754177145762).

The spelling of 20651116030160 in words is "twenty trillion, six hundred fifty-one billion, one hundred sixteen million, thirty thousand, one hundred sixty".