20641667750603 has 8 divisors (see below), whose sum is σ = 20756073972816. Its totient is φ = 20527265527200.

The previous prime is 20641667750597. The next prime is 20641667750609. The reversal of 20641667750603 is 30605776614602.

It is an interprime number because it is at equal distance from previous prime (20641667750597) and next prime (20641667750609).

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 20641667750603 - 2¹⁰ = 20641667749579 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20641667750609) 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 7 ways as a sum of consecutive naturals, for example, 9667325 + ... + 11607777.

It is an arithmetic number, because the mean of its divisors is an integer number (2594509246602).

Almost surely, 2^{20641667750603} is an apocalyptic number.

20641667750603 is a deficient number, since it is larger than the sum of its proper divisors (114406222213).

20641667750603 is a wasteful number, since it uses less digits than its factorization.

20641667750603 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1999405.

The product of its (nonzero) digits is 7620480, while the sum is 53.

The spelling of 20641667750603 in words is "twenty trillion, six hundred forty-one billion, six hundred sixty-seven million, seven hundred fifty thousand, six hundred three".