20424423266401 has 16 divisors (see below), whose sum is σ = 26571355849728. Its totient is φ = 15223172619600.

The previous prime is 20424423266399. The next prime is 20424423266417. The reversal of 20424423266401 is 10466232442402.

It is not a de Polignac number, because 20424423266401 - 2¹ = 20424423266399 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20424423260401) 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 15 ways as a sum of consecutive naturals, for example, 5766351495 + ... + 5766355036.

It is an arithmetic number, because the mean of its divisors is an integer number (1660709740608).

Almost surely, 2^{20424423266401} is an apocalyptic number.

It is an amenable number.

20424423266401 is a deficient number, since it is larger than the sum of its proper divisors (6146932583327).

20424423266401 is a wasteful number, since it uses less digits than its factorization.

20424423266401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11532706572.

The product of its (nonzero) digits is 442368, while the sum is 40.

The spelling of 20424423266401 in words is "twenty trillion, four hundred twenty-four billion, four hundred twenty-three million, two hundred sixty-six thousand, four hundred one".