20424375266671 has 16 divisors (see below), whose sum is σ = 21210591519360. Its totient is φ = 19643648048640.

The previous prime is 20424375266639. The next prime is 20424375266741. The reversal of 20424375266671 is 17666257342402.

It is a cyclic number.

It is not a de Polignac number, because 20424375266671 - 2⁵ = 20424375266639 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 (20424375261671) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42300711 + ... + 42780823.

It is an arithmetic number, because the mean of its divisors is an integer number (1325661969960).

Almost surely, 2^{20424375266671} is an apocalyptic number.

20424375266671 is a deficient number, since it is larger than the sum of its proper divisors (786216252689).

20424375266671 is a wasteful number, since it uses less digits than its factorization.

20424375266671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 485826.

The product of its (nonzero) digits is 20321280, while the sum is 55.

The spelling of 20424375266671 in words is "twenty trillion, four hundred twenty-four billion, three hundred seventy-five million, two hundred sixty-six thousand, six hundred seventy-one".