20468161711250 has 90 divisors (see below), whose sum is σ = 42173992874937. Its totient is φ = 7442328080000.

The previous prime is 20468161711219. The next prime is 20468161711321. The reversal of 20468161711250 is 5211716186402.

It can be written as a sum of positive squares in 8 ways, for example, as 207459297529 + 20260702413721 = 455477^2 + 4501189^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=3199075.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 1759485434 + ... + 1759497066.

Almost surely, 2^{20468161711250} is an apocalyptic number.

20468161711250 is an abundant number, since it is smaller than the sum of its proper divisors (21705831163687).

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

20468161711250 is an frugal number, since it uses more digits than its factorization.

20468161711250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23310 (or 11651 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 44.

Adding to 20468161711250 its reverse (5211716186402), we get a palindrome (25679877897652).

The spelling of 20468161711250 in words is "twenty trillion, four hundred sixty-eight billion, one hundred sixty-one million, seven hundred eleven thousand, two hundred fifty".