20417348802511 has 8 divisors (see below), whose sum is σ = 20424140416944. Its totient is φ = 20410558272960.

The previous prime is 20417348802457. The next prime is 20417348802547. The reversal of 20417348802511 is 11520884371402.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20417348802511 - 2⁹ = 20417348801999 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20417348802811) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 38280781 + ... + 38810473.

It is an arithmetic number, because the mean of its divisors is an integer number (2553017552118).

Almost surely, 2^{20417348802511} is an apocalyptic number.

20417348802511 is a deficient number, since it is larger than the sum of its proper divisors (6791614433).

20417348802511 is an equidigital number, since it uses as much as digits as its factorization.

20417348802511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 542441.

The product of its (nonzero) digits is 430080, while the sum is 46.

The spelling of 20417348802511 in words is "twenty trillion, four hundred seventeen billion, three hundred forty-eight million, eight hundred two thousand, five hundred eleven".