20617306158112 has 12 divisors (see below), whose sum is σ = 40590321498846. Its totient is φ = 10308653079040.

The previous prime is 20617306158091. The next prime is 20617306158121. The reversal of 20617306158112 is 21185160371602.

It can be written as a sum of positive squares in only one way, i.e., 19562256709776 + 1055049448336 = 4422924^2 + 1027156^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 322145408689 + ... + 322145408752.

Almost surely, 2^{20617306158112} is an apocalyptic number.

It is an amenable number.

20617306158112 is a deficient number, since it is larger than the sum of its proper divisors (19973015340734).

20617306158112 is an equidigital number, since it uses as much as digits as its factorization.

20617306158112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 644290817451 (or 644290817443 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 43.

The spelling of 20617306158112 in words is "twenty trillion, six hundred seventeen billion, three hundred six million, one hundred fifty-eight thousand, one hundred twelve".