20065121061172 has 48 divisors (see below), whose sum is σ = 38537008054272. Its totient is φ = 9065545267680.

The previous prime is 20065121061059. The next prime is 20065121061191. The reversal of 20065121061172 is 27116012156002.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 333150253 + ... + 333210475.

It is an arithmetic number, because the mean of its divisors is an integer number (802854334464).

Almost surely, 2^{20065121061172} is an apocalyptic number.

20065121061172 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

20065121061172 is a deficient number, since it is larger than the sum of its proper divisors (18471886993100).

20065121061172 is a wasteful number, since it uses less digits than its factorization.

20065121061172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105748 (or 105746 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 34.

The spelling of 20065121061172 in words is "twenty trillion, sixty-five billion, one hundred twenty-one million, sixty-one thousand, one hundred seventy-two".