20411443231408 has 20 divisors (see below), whose sum is σ = 39548402608288. Its totient is φ = 10205403848640.

The previous prime is 20411443231391. The next prime is 20411443231409. The reversal of 20411443231408 is 80413234411402.

It is not an unprimeable number, because it can be changed into a prime (20411443231409) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 19330083 + ... + 20358658.

Almost surely, 2^{20411443231408} is an apocalyptic number.

It is an amenable number.

20411443231408 is a deficient number, since it is larger than the sum of its proper divisors (19136959376880).

20411443231408 is a wasteful number, since it uses less digits than its factorization.

20411443231408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39720892 (or 39720886 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 37.

The spelling of 20411443231408 in words is "twenty trillion, four hundred eleven billion, four hundred forty-three million, two hundred thirty-one thousand, four hundred eight".