20975681580083 has 16 divisors (see below), whose sum is σ = 22115184537600. Its totient is φ = 19839736113120.

The previous prime is 20975681580017. The next prime is 20975681580109. The reversal of 20975681580083 is 38008518657902.

It is a cyclic number.

It is not a de Polignac number, because 20975681580083 - 2¹⁰ = 20975681579059 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20975681579998 and 20975681580025.

It is not an unprimeable number, because it can be changed into a prime (20975681580583) 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 15 ways as a sum of consecutive naturals, for example, 148967093 + ... + 149107833.

It is an arithmetic number, because the mean of its divisors is an integer number (1382199033600).

Almost surely, 2^{20975681580083} is an apocalyptic number.

20975681580083 is a deficient number, since it is larger than the sum of its proper divisors (1139502957517).

20975681580083 is a wasteful number, since it uses less digits than its factorization.

20975681580083 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153322.

The product of its (nonzero) digits is 29030400, while the sum is 62.

The spelling of 20975681580083 in words is "twenty trillion, nine hundred seventy-five billion, six hundred eighty-one million, five hundred eighty thousand, eighty-three".